612404625231 has 48 divisors (see below), whose sum is σ = 1021687879680. Its totient is φ = 346234737600.

The previous prime is 612404625229. The next prime is 612404625233. The reversal of 612404625231 is 132526404216.

612404625231 is a `hidden beast` number, since 6 + 1 + 2 + 4 + 0 + 4 + 625 + 23 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (612404625229) and next prime (612404625233).

It is not a de Polignac number, because 612404625231 - 2¹ = 612404625229 is a prime.

It is a super-2 number, since 2×612404625231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612404625233) 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 47 ways as a sum of consecutive naturals, for example, 9122916 + ... + 9189798.

It is an arithmetic number, because the mean of its divisors is an integer number (21285164160).

Almost surely, 2^612404625231 is an apocalyptic number.

612404625231 is a deficient number, since it is larger than the sum of its proper divisors (409283254449).

612404625231 is a wasteful number, since it uses less digits than its factorization.

612404625231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68436 (or 68433 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 612404625231 in words is "six hundred twelve billion, four hundred four million, six hundred twenty-five thousand, two hundred thirty-one".