38956772628 has 36 divisors (see below), whose sum is σ = 99018136308. Its totient is φ = 12913845120.

The previous prime is 38956772599. The next prime is 38956772663. The reversal of 38956772628 is 82627765983.

38956772628 is a `hidden beast` number, since 3 + 8 + 9 + 567 + 7 + 2 + 62 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17492178564 + 21464594064 = 132258^2 + 146508^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2982801 + ... + 2995832.

Almost surely, 2^38956772628 is an apocalyptic number.

It is an amenable number.

38956772628 is an abundant number, since it is smaller than the sum of its proper divisors (60061363680).

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

38956772628 is a wasteful number, since it uses less digits than its factorization.

38956772628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5978824 (or 5978819 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The spelling of 38956772628 in words is "thirty-eight billion, nine hundred fifty-six million, seven hundred seventy-two thousand, six hundred twenty-eight".