51613241376 has 48 divisors (see below), whose sum is σ = 140156654400. Its totient is φ = 16611157248.

The previous prime is 51613241311. The next prime is 51613241387. The reversal of 51613241376 is 67314231615.

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

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, 9266836 + ... + 9272403.

It is an arithmetic number, because the mean of its divisors is an integer number (2919930300).

Almost surely, 2^51613241376 is an apocalyptic number.

It is an amenable number.

51613241376 is an abundant number, since it is smaller than the sum of its proper divisors (88543413024).

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

51613241376 is a wasteful number, since it uses less digits than its factorization.

51613241376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18539281 (or 18539273 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The spelling of 51613241376 in words is "fifty-one billion, six hundred thirteen million, two hundred forty-one thousand, three hundred seventy-six".