51140930784 has 48 divisors (see below), whose sum is σ = 141310471680. Its totient is φ = 16149767040.

The previous prime is 51140930779. The next prime is 51140930791. The reversal of 51140930784 is 48703904115.

It is a happy number.

51140930784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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, 14017072 + ... + 14020719.

It is an arithmetic number, because the mean of its divisors is an integer number (2943968160).

Almost surely, 2^51140930784 is an apocalyptic number.

It is an amenable number.

51140930784 is an abundant number, since it is smaller than the sum of its proper divisors (90169540896).

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

51140930784 is a wasteful number, since it uses less digits than its factorization.

51140930784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28037823 (or 28037815 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 51140930784 in words is "fifty-one billion, one hundred forty million, nine hundred thirty thousand, seven hundred eighty-four".