51693930534 has 128 divisors (see below), whose sum is σ = 113706270720. Its totient is φ = 15611270400.

The previous prime is 51693930523. The next prime is 51693930551. The reversal of 51693930534 is 43503939615.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 119939299 + ... + 119939729.

It is an arithmetic number, because the mean of its divisors is an integer number (888330240).

Almost surely, 2^51693930534 is an apocalyptic number.

51693930534 is an abundant number, since it is smaller than the sum of its proper divisors (62012340186).

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

51693930534 is a wasteful number, since it uses less digits than its factorization.

51693930534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946.

The product of its (nonzero) digits is 1312200, while the sum is 48.

The spelling of 51693930534 in words is "fifty-one billion, six hundred ninety-three million, nine hundred thirty thousand, five hundred thirty-four".