51775657715 has 16 divisors (see below), whose sum is σ = 62946229248. Its totient is φ = 40877961696.

The previous prime is 51775657669. The next prime is 51775657741.

51775657715 is nontrivially palindromic in base 10.

51775657715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51775657715 - 2¹⁸ = 51775395571 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327134 + ... + 458876.

It is an arithmetic number, because the mean of its divisors is an integer number (3934139328).

Almost surely, 2^51775657715 is an apocalyptic number.

51775657715 is a deficient number, since it is larger than the sum of its proper divisors (11170571533).

51775657715 is a wasteful number, since it uses less digits than its factorization.

51775657715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132778.

The product of its digits is 9003750, while the sum is 56.

The spelling of 51775657715 in words is "fifty-one billion, seven hundred seventy-five million, six hundred fifty-seven thousand, seven hundred fifteen".