51264656307 has 12 divisors (see below), whose sum is σ = 74077940560. Its totient is φ = 34163056368.

The previous prime is 51264656293. The next prime is 51264656309. The reversal of 51264656307 is 70365646215.

51264656307 is a `hidden beast` number, since 5 + 1 + 2 + 6 + 4 + 6 + 5 + 630 + 7 = 666.

It is not a de Polignac number, because 51264656307 - 2⁴ = 51264656291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51264656309) 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, 1090807 + ... + 1136832.

Almost surely, 2^51264656307 is an apocalyptic number.

51264656307 is a deficient number, since it is larger than the sum of its proper divisors (22813284253).

51264656307 is a wasteful number, since it uses less digits than its factorization.

51264656307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230202 (or 2230199 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 51264656307 in words is "fifty-one billion, two hundred sixty-four million, six hundred fifty-six thousand, three hundred seven".