38432518720 has 28 divisors (see below), whose sum is σ = 91517435964. Its totient is φ = 15373007360.

The previous prime is 38432518693. The next prime is 38432518721. The reversal of 38432518720 is 2781523483.

It can be written as a sum of positive squares in 2 ways, for example, as 6992973376 + 31439545344 = 83624^2 + 177312^2 .

It is not an unprimeable number, because it can be changed into a prime (38432518721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60050491 + ... + 60051130.

Almost surely, 2^38432518720 is an apocalyptic number.

It is an amenable number.

38432518720 is an abundant number, since it is smaller than the sum of its proper divisors (53084917244).

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

38432518720 is a wasteful number, since it uses less digits than its factorization.

38432518720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120101638 (or 120101628 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 38432518720 in words is "thirty-eight billion, four hundred thirty-two million, five hundred eighteen thousand, seven hundred twenty".