51924578944 has 128 divisors (see below), whose sum is σ = 124718745600. Its totient is φ = 21035510784.

The previous prime is 51924578939. The next prime is 51924578969. The reversal of 51924578944 is 44987542915.

It is a tau number, because it is divible by the number of its divisors (128).

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, 8287557 + ... + 8293819.

It is an arithmetic number, because the mean of its divisors is an integer number (974365200).

Almost surely, 2^51924578944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51924578944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62359372800).

51924578944 is an abundant number, since it is smaller than the sum of its proper divisors (72794166656).

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

51924578944 is a wasteful number, since it uses less digits than its factorization.

51924578944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6790 (or 6778 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 58.

The spelling of 51924578944 in words is "fifty-one billion, nine hundred twenty-four million, five hundred seventy-eight thousand, nine hundred forty-four".