264375812557431 has 6 divisors (see below), whose sum is σ = 381876173694080. Its totient is φ = 176250541704948.

The previous prime is 264375812557369. The next prime is 264375812557511. The reversal of 264375812557431 is 134755218573462.

264375812557431 is a `hidden beast` number, since 2 + 6 + 4 + 3 + 7 + 5 + 8 + 1 + 25 + 574 + 31 = 666.

264375812557431 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 264375812557431 - 2⁴⁶ = 194007068379767 is a prime.

It is a super-2 number, since 2×264375812557431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264375812057431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14687545142071 + ... + 14687545142088.

Almost surely, 2^{264375812557431} is an apocalyptic number.

264375812557431 is a deficient number, since it is larger than the sum of its proper divisors (117500361136649).

264375812557431 is a wasteful number, since it uses less digits than its factorization.

264375812557431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29375090284165 (or 29375090284162 counting only the distinct ones).

The product of its digits is 169344000, while the sum is 63.

The spelling of 264375812557431 in words is "two hundred sixty-four trillion, three hundred seventy-five billion, eight hundred twelve million, five hundred fifty-seven thousand, four hundred thirty-one".