3881017888938 has 80 divisors (see below), whose sum is σ = 8713440267840. Its totient is φ = 1291132747584.

The previous prime is 3881017888931. The next prime is 3881017888939. The reversal of 3881017888938 is 8398887101883.

3881017888938 is a `hidden beast` number, since 388 + 10 + 1 + 78 + 88 + 93 + 8 = 666.

3881017888938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3881017888931) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 309509473 + ... + 309522011.

It is an arithmetic number, because the mean of its divisors is an integer number (108918003348).

Almost surely, 2^{3881017888938} is an apocalyptic number.

3881017888938 is an abundant number, since it is smaller than the sum of its proper divisors (4832422378902).

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

3881017888938 is a wasteful number, since it uses less digits than its factorization.

3881017888938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16153 (or 16144 counting only the distinct ones).

The product of its (nonzero) digits is 148635648, while the sum is 72.

The spelling of 3881017888938 in words is "three trillion, eight hundred eighty-one billion, seventeen million, eight hundred eighty-eight thousand, nine hundred thirty-eight".