51769790905 has 32 divisors (see below), whose sum is σ = 74784614400. Its totient is φ = 34354111680.

The previous prime is 51769790899. The next prime is 51769790927. The reversal of 51769790905 is 50909796715.

It is not a de Polignac number, because 51769790905 - 2⁵ = 51769790873 is a prime.

It is a super-2 number, since 2×51769790905² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51769790905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 433714 + ... + 540043.

It is an arithmetic number, because the mean of its divisors is an integer number (2337019200).

Almost surely, 2^51769790905 is an apocalyptic number.

It is an amenable number.

51769790905 is a deficient number, since it is larger than the sum of its proper divisors (23014823495).

51769790905 is an equidigital number, since it uses as much as digits as its factorization.

51769790905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973814 (or 973800 counting only the distinct ones).

The product of its (nonzero) digits is 5358150, while the sum is 58.

The spelling of 51769790905 in words is "fifty-one billion, seven hundred sixty-nine million, seven hundred ninety thousand, nine hundred five".