38928917660 has 48 divisors (see below), whose sum is σ = 82107043200. Its totient is φ = 15503837184.

The previous prime is 38928917639. The next prime is 38928917669. The reversal of 38928917660 is 6671982983.

It is a self number, because there is not a number n which added to its sum of digits gives 38928917660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38928917669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5072306 + ... + 5079974.

It is an arithmetic number, because the mean of its divisors is an integer number (1710563400).

Almost surely, 2^38928917660 is an apocalyptic number.

It is an amenable number.

38928917660 is an abundant number, since it is smaller than the sum of its proper divisors (43178125540).

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

38928917660 is a wasteful number, since it uses less digits than its factorization.

38928917660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8750 (or 8748 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 38928917660 in words is "thirty-eight billion, nine hundred twenty-eight million, nine hundred seventeen thousand, six hundred sixty".