51710890752 has 144 divisors (see below), whose sum is σ = 155804554080. Its totient is φ = 16911618048.

The previous prime is 51710890747. The next prime is 51710890813. The reversal of 51710890752 is 25709801715.

51710890752 is a `hidden beast` number, since 517 + 1 + 0 + 89 + 0 + 7 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 51710890698 and 51710890707.

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, 295758 + ... + 436914.

It is an arithmetic number, because the mean of its divisors is an integer number (1081976070).

Almost surely, 2^51710890752 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 51710890752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77902277040).

51710890752 is an abundant number, since it is smaller than the sum of its proper divisors (104093663328).

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

51710890752 is a wasteful number, since it uses less digits than its factorization.

51710890752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141235 (or 141215 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 45.

The spelling of 51710890752 in words is "fifty-one billion, seven hundred ten million, eight hundred ninety thousand, seven hundred fifty-two".