231074057646 has 24 divisors (see below), whose sum is σ = 501617764440. Its totient is φ = 76877408016.

The previous prime is 231074057639. The next prime is 231074057677. The reversal of 231074057646 is 646750470132.

231074057646 is a `hidden beast` number, since 2 + 3 + 1 + 0 + 74 + 0 + 576 + 4 + 6 = 666.

It is a super-2 number, since 2×231074057646² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12263481 + ... + 12282308.

It is an arithmetic number, because the mean of its divisors is an integer number (20900740185).

Almost surely, 2^231074057646 is an apocalyptic number.

231074057646 is an abundant number, since it is smaller than the sum of its proper divisors (270543706794).

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

231074057646 is a wasteful number, since it uses less digits than its factorization.

231074057646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24546320 (or 24546317 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 231074057646 in words is "two hundred thirty-one billion, seventy-four million, fifty-seven thousand, six hundred forty-six".