51310622880 has 480 divisors, whose sum is σ = 201302817408. Its totient is φ = 12202444800.

The previous prime is 51310622851. The next prime is 51310622893. The reversal of 51310622880 is 8822601315.

It is a happy number.

51310622880 is a `hidden beast` number, since 5 + 1 + 310 + 62 + 288 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7552285 + ... + 7559075.

Almost surely, 2^51310622880 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 51310622880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100651408704).

51310622880 is an abundant number, since it is smaller than the sum of its proper divisors (149992194528).

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

51310622880 is a wasteful number, since it uses less digits than its factorization.

51310622880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6882 (or 6865 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 51310622880 in words is "fifty-one billion, three hundred ten million, six hundred twenty-two thousand, eight hundred eighty".