5436555894 has 288 divisors, whose sum is σ = 15727315968. Its totient is φ = 1377129600.

The previous prime is 5436555893. The next prime is 5436555911. The reversal of 5436555894 is 4985556345.

5436555894 is a `hidden beast` number, since 5 + 4 + 3 + 6 + 55 + 589 + 4 = 666.

It is a super-2 number, since 2×5436555894² = 59112279977172278472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5436555894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5436555893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 19347034 + ... + 19347314.

It is an arithmetic number, because the mean of its divisors is an integer number (54608736).

Almost surely, 2^5436555894 is an apocalyptic number.

5436555894 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5436555894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7863657984).

5436555894 is an abundant number, since it is smaller than the sum of its proper divisors (10290760074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5436555894 is a wasteful number, since it uses less digits than its factorization.

5436555894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 351 counting only the distinct ones).

The product of its digits is 12960000, while the sum is 54.

The square root of 5436555894 is about 73733.0041026405. The cubic root of 5436555894 is about 1758.3606349337.

The spelling of 5436555894 in words is "five billion, four hundred thirty-six million, five hundred fifty-five thousand, eight hundred ninety-four".