231396037858 has 32 divisors (see below), whose sum is σ = 367795625472. Its totient is φ = 109012176000.

The previous prime is 231396037843. The next prime is 231396037861. The reversal of 231396037858 is 858730693132.

It is a junction number, because it is equal to n+sod(n) for n = 231396037799 and 231396037808.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695808 + ... + 973108.

It is an arithmetic number, because the mean of its divisors is an integer number (11493613296).

Almost surely, 2^231396037858 is an apocalyptic number.

231396037858 is a deficient number, since it is larger than the sum of its proper divisors (136399587614).

231396037858 is a wasteful number, since it uses less digits than its factorization.

231396037858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277690.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 231396037858 in words is "two hundred thirty-one billion, three hundred ninety-six million, thirty-seven thousand, eight hundred fifty-eight".