3872388520057 has 4 divisors (see below), whose sum is σ = 3873644568720. Its totient is φ = 3871132471396.

The previous prime is 3872388520043. The next prime is 3872388520079. The reversal of 3872388520057 is 7500258832783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3872388520057 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3872388519983 and 3872388520010.

It is not an unprimeable number, because it can be changed into a prime (3872388520157) 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, 628019707 + ... + 628025872.

It is an arithmetic number, because the mean of its divisors is an integer number (968411142180).

Almost surely, 2^{3872388520057} is an apocalyptic number.

It is an amenable number.

3872388520057 is a deficient number, since it is larger than the sum of its proper divisors (1256048663).

3872388520057 is a wasteful number, since it uses less digits than its factorization.

3872388520057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256048662.

The product of its (nonzero) digits is 22579200, while the sum is 58.

The spelling of 3872388520057 in words is "three trillion, eight hundred seventy-two billion, three hundred eighty-eight million, five hundred twenty thousand, fifty-seven".