51787789005 has 16 divisors (see below), whose sum is σ = 84881450304. Its totient is φ = 26946491520.

The previous prime is 51787788893. The next prime is 51787789057. The reversal of 51787789005 is 50098778715.

It is not a de Polignac number, because 51787789005 - 2⁸ = 51787788749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42103279 + ... + 42104508.

It is an arithmetic number, because the mean of its divisors is an integer number (5305090644).

Almost surely, 2^51787789005 is an apocalyptic number.

It is an amenable number.

51787789005 is a deficient number, since it is larger than the sum of its proper divisors (33093661299).

51787789005 is a wasteful number, since it uses less digits than its factorization.

51787789005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84207836.

The product of its (nonzero) digits is 4939200, while the sum is 57.

The spelling of 51787789005 in words is "fifty-one billion, seven hundred eighty-seven million, seven hundred eighty-nine thousand, five".