231868072446 has 32 divisors (see below), whose sum is σ = 479779200000. Its totient is φ = 74616094560.

The previous prime is 231868072427. The next prime is 231868072453. The reversal of 231868072446 is 644270868132.

It is a congruent number.

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, 1650055 + ... + 1785053.

It is an arithmetic number, because the mean of its divisors is an integer number (14993100000).

Almost surely, 2^231868072446 is an apocalyptic number.

231868072446 is an abundant number, since it is smaller than the sum of its proper divisors (247911127554).

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

231868072446 is a wasteful number, since it uses less digits than its factorization.

231868072446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144904.

The product of its (nonzero) digits is 3096576, while the sum is 51.

The spelling of 231868072446 in words is "two hundred thirty-one billion, eight hundred sixty-eight million, seventy-two thousand, four hundred forty-six".