51117262705 has 32 divisors (see below), whose sum is σ = 63765636480. Its totient is φ = 39309304320.

The previous prime is 51117262681. The next prime is 51117262751. The reversal of 51117262705 is 50726271115.

It is not a de Polignac number, because 51117262705 - 2¹¹ = 51117260657 is a prime.

It is a super-2 number, since 2×51117262705² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6614974 + ... + 6622696.

It is an arithmetic number, because the mean of its divisors is an integer number (1992676140).

Almost surely, 2^51117262705 is an apocalyptic number.

It is an amenable number.

51117262705 is a deficient number, since it is larger than the sum of its proper divisors (12648373775).

51117262705 is a wasteful number, since it uses less digits than its factorization.

51117262705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8241.

The product of its (nonzero) digits is 29400, while the sum is 37.

The spelling of 51117262705 in words is "fifty-one billion, one hundred seventeen million, two hundred sixty-two thousand, seven hundred five".