51782745928 has 32 divisors (see below), whose sum is σ = 101345788800. Its totient is φ = 24757907328.

The previous prime is 51782745913. The next prime is 51782745953. The reversal of 51782745928 is 82954728715.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568300 + ... + 653092.

It is an arithmetic number, because the mean of its divisors is an integer number (3167055900).

Almost surely, 2^51782745928 is an apocalyptic number.

It is an amenable number.

51782745928 is a deficient number, since it is larger than the sum of its proper divisors (49563042872).

51782745928 is a wasteful number, since it uses less digits than its factorization.

51782745928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88141 (or 88137 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 58.

The spelling of 51782745928 in words is "fifty-one billion, seven hundred eighty-two million, seven hundred forty-five thousand, nine hundred twenty-eight".