51764728676507 has 16 divisors (see below), whose sum is σ = 64538609201664. Its totient is φ = 40335673680000.

The previous prime is 51764728676503. The next prime is 51764728676537. The reversal of 51764728676507 is 70567682746715.

It is a cyclic number.

It is not a de Polignac number, because 51764728676507 - 2² = 51764728676503 is a prime.

It is a super-2 number, since 2×51764728676507² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51764728676503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2615282 + ... + 10505672.

It is an arithmetic number, because the mean of its divisors is an integer number (4033663075104).

Almost surely, 2^{51764728676507} is an apocalyptic number.

51764728676507 is a deficient number, since it is larger than the sum of its proper divisors (12773880525157).

51764728676507 is a wasteful number, since it uses less digits than its factorization.

51764728676507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7975610.

The product of its (nonzero) digits is 829785600, while the sum is 71.

The spelling of 51764728676507 in words is "fifty-one trillion, seven hundred sixty-four billion, seven hundred twenty-eight million, six hundred seventy-six thousand, five hundred seven".