231480386556 has 48 divisors (see below), whose sum is σ = 541057913760. Its totient is φ = 77026360320.

The previous prime is 231480386549. The next prime is 231480386561. The reversal of 231480386556 is 655683084132.

It is a super-2 number, since 2×231480386556² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231480386499 and 231480386508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34234216 + ... + 34240976.

It is an arithmetic number, because the mean of its divisors is an integer number (11272039870).

Almost surely, 2^231480386556 is an apocalyptic number.

It is an amenable number.

231480386556 is an abundant number, since it is smaller than the sum of its proper divisors (309577527204).

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

231480386556 is a wasteful number, since it uses less digits than its factorization.

231480386556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11294 (or 11292 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 51.

The spelling of 231480386556 in words is "two hundred thirty-one billion, four hundred eighty million, three hundred eighty-six thousand, five hundred fifty-six".