51348775812 has 48 divisors (see below), whose sum is σ = 127344322560. Its totient is φ = 16057964448.

The previous prime is 51348775801. The next prime is 51348775823. The reversal of 51348775812 is 21857784315.

It is an interprime number because it is at equal distance from previous prime (51348775801) and next prime (51348775823).

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, 1069788 + ... + 1116755.

It is an arithmetic number, because the mean of its divisors is an integer number (2653006720).

Almost surely, 2^51348775812 is an apocalyptic number.

It is an amenable number.

51348775812 is an abundant number, since it is smaller than the sum of its proper divisors (75995546748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51348775812 is a wasteful number, since it uses less digits than its factorization.

51348775812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186672 (or 2186670 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 51.

The spelling of 51348775812 in words is "fifty-one billion, three hundred forty-eight million, seven hundred seventy-five thousand, eight hundred twelve".