13445793936 has 75 divisors (see below), whose sum is σ = 38928114313. Its totient is φ = 4480539840.

The previous prime is 13445793931. The next prime is 13445793937. The reversal of 13445793936 is 63939754431.

The square root of 13445793936 is 115956.

It is a perfect power (a square), and thus also a powerful number.

13445793936 is a `hidden beast` number, since 1 + 3 + 4 + 4 + 579 + 39 + 36 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10372200336 + 3073593600 = 101844^2 + 55440^2 .

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13445793931) 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 14 ways as a sum of consecutive naturals, for example, 4172806 + ... + 4176026.

Almost surely, 2^13445793936 is an apocalyptic number.

13445793936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

13445793936 is the 115956-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13445793936

13445793936 is an abundant number, since it is smaller than the sum of its proper divisors (25482320377).

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

13445793936 is an frugal number, since it uses more digits than its factorization.

13445793936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6462 (or 3226 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 54.

The spelling of 13445793936 in words is "thirteen billion, four hundred forty-five million, seven hundred ninety-three thousand, nine hundred thirty-six".