231254649369 has 12 divisors (see below), whose sum is σ = 344809800192. Its totient is φ = 149196547800.

The previous prime is 231254649323. The next prime is 231254649391. The reversal of 231254649369 is 963946452132.

231254649369 is a `hidden beast` number, since 2 + 3 + 1 + 2 + 546 + 4 + 93 + 6 + 9 = 666.

It is not a de Polignac number, because 231254649369 - 2⁸ = 231254649113 is a prime.

It is a super-2 number, since 2×231254649369² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231254649869) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 414434577 + ... + 414435134.

It is an arithmetic number, because the mean of its divisors is an integer number (28734150016).

Almost surely, 2^231254649369 is an apocalyptic number.

It is an amenable number.

231254649369 is a deficient number, since it is larger than the sum of its proper divisors (113555150823).

231254649369 is a wasteful number, since it uses less digits than its factorization.

231254649369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828869748 (or 828869745 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 54.

The spelling of 231254649369 in words is "two hundred thirty-one billion, two hundred fifty-four million, six hundred forty-nine thousand, three hundred sixty-nine".