5123544444 has 36 divisors (see below), whose sum is σ = 13030651816. Its totient is φ = 1697368608.

The previous prime is 5123544421. The next prime is 5123544457. The reversal of 5123544444 is 4444453215.

5123544444 is a `hidden beast` number, since 51 + 23 + 544 + 4 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5123544399 and 5123544408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 430699 + ... + 442434.

Almost surely, 2^5123544444 is an apocalyptic number.

It is an amenable number.

5123544444 is an abundant number, since it is smaller than the sum of its proper divisors (7907107372).

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

5123544444 is a wasteful number, since it uses less digits than its factorization.

5123544444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873306 (or 873301 counting only the distinct ones).

The product of its digits is 153600, while the sum is 36.

The square root of 5123544444 is about 71578.9385503865. The cubic root of 5123544444 is about 1723.9453828409.

Adding to 5123544444 its reverse (4444453215), we get a palindrome (9567997659).

The spelling of 5123544444 in words is "five billion, one hundred twenty-three million, five hundred forty-four thousand, four hundred forty-four".