51037672320 has 320 divisors, whose sum is σ = 191861326800. Its totient is φ = 12893478912.

The previous prime is 51037672303. The next prime is 51037672349. The reversal of 51037672320 is 2327673015.

51037672320 is a `hidden beast` number, since 51 + 0 + 376 + 7 + 232 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 959052 + ... + 1010868.

Almost surely, 2^51037672320 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 51037672320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95930663400).

51037672320 is an abundant number, since it is smaller than the sum of its proper divisors (140823654480).

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

51037672320 is a wasteful number, since it uses less digits than its factorization.

51037672320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51867 (or 51846 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The spelling of 51037672320 in words is "fifty-one billion, thirty-seven million, six hundred seventy-two thousand, three hundred twenty".