38898887865 has 16 divisors (see below), whose sum is σ = 62336870016. Its totient is φ = 20713190400.

The previous prime is 38898887843. The next prime is 38898887873. The reversal of 38898887865 is 56878889883.

It is not a de Polignac number, because 38898887865 - 2⁹ = 38898887353 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2045416 + ... + 2064345.

It is an arithmetic number, because the mean of its divisors is an integer number (3896054376).

Almost surely, 2^38898887865 is an apocalyptic number.

It is an amenable number.

38898887865 is a deficient number, since it is larger than the sum of its proper divisors (23437982151).

38898887865 is a wasteful number, since it uses less digits than its factorization.

38898887865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4110400.

The product of its digits is 1486356480, while the sum is 78.

The spelling of 38898887865 in words is "thirty-eight billion, eight hundred ninety-eight million, eight hundred eighty-seven thousand, eight hundred sixty-five".