38915177628 has 12 divisors (see below), whose sum is σ = 90802081160. Its totient is φ = 12971725872.

The previous prime is 38915177627. The next prime is 38915177647. The reversal of 38915177628 is 82677151983.

It is a happy number.

38915177628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38915177627) 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, 1621465723 + ... + 1621465746.

Almost surely, 2^38915177628 is an apocalyptic number.

It is an amenable number.

38915177628 is an abundant number, since it is smaller than the sum of its proper divisors (51886903532).

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

38915177628 is a wasteful number, since it uses less digits than its factorization.

38915177628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242931476 (or 3242931474 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 57.

The spelling of 38915177628 in words is "thirty-eight billion, nine hundred fifteen million, one hundred seventy-seven thousand, six hundred twenty-eight".