51567627617 has 16 divisors (see below), whose sum is σ = 56686867200. Its totient is φ = 46520519040.

The previous prime is 51567627613. The next prime is 51567627623. The reversal of 51567627617 is 71672676515.

It is a cyclic number.

It is not a de Polignac number, because 51567627617 - 2² = 51567627613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51567627613) 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, 6142859 + ... + 6151247.

It is an arithmetic number, because the mean of its divisors is an integer number (3542929200).

Almost surely, 2^51567627617 is an apocalyptic number.

It is an amenable number.

51567627617 is a deficient number, since it is larger than the sum of its proper divisors (5119239583).

51567627617 is a wasteful number, since it uses less digits than its factorization.

51567627617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12616.

The product of its digits is 3704400, while the sum is 53.

The spelling of 51567627617 in words is "fifty-one billion, five hundred sixty-seven million, six hundred twenty-seven thousand, six hundred seventeen".