231870803625 has 24 divisors (see below), whose sum is σ = 417985770696. Its totient is φ = 123664428000.

The previous prime is 231870803603. The next prime is 231870803683. The reversal of 231870803625 is 526308078132.

231870803625 is a `hidden beast` number, since 2 + 3 + 18 + 7 + 0 + 8 + 0 + 3 + 625 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 44634590361 + 187236213264 = 211269^2 + 432708^2 .

It is not a de Polignac number, because 231870803625 - 2¹³ = 231870795433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 23 ways as a sum of consecutive naturals, for example, 103052566 + ... + 103054815.

It is an arithmetic number, because the mean of its divisors is an integer number (17416073779).

Almost surely, 2^231870803625 is an apocalyptic number.

231870803625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231870803625 is a deficient number, since it is larger than the sum of its proper divisors (186114967071).

231870803625 is a wasteful number, since it uses less digits than its factorization.

231870803625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206107402 (or 206107389 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 231870803625 in words is "two hundred thirty-one billion, eight hundred seventy million, eight hundred three thousand, six hundred twenty-five".