51375277684 has 12 divisors (see below), whose sum is σ = 89913348000. Its totient is φ = 25685749688.

The previous prime is 51375277661. The next prime is 51375277697. The reversal of 51375277684 is 48677257315.

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 3 ways as a sum of consecutive naturals, for example, 410194 + ... + 520585.

It is an arithmetic number, because the mean of its divisors is an integer number (7492779000).

Almost surely, 2^51375277684 is an apocalyptic number.

It is an amenable number.

51375277684 is a deficient number, since it is larger than the sum of its proper divisors (38538070316).

51375277684 is a wasteful number, since it uses less digits than its factorization.

51375277684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944582 (or 944580 counting only the distinct ones).

The product of its digits is 9878400, while the sum is 55.

The spelling of 51375277684 in words is "fifty-one billion, three hundred seventy-five million, two hundred seventy-seven thousand, six hundred eighty-four".