51630630336 has 112 divisors (see below), whose sum is σ = 154273077280. Its totient is φ = 16928040960.

The previous prime is 51630630257. The next prime is 51630630349. The reversal of 51630630336 is 63303603615.

51630630336 is a `hidden beast` number, since 5 + 16 + 3 + 0 + 630 + 3 + 3 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 51630630336.

It is a congruent number.

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, 139501 + ... + 350316.

It is an arithmetic number, because the mean of its divisors is an integer number (1377438190).

Almost surely, 2^51630630336 is an apocalyptic number.

It is an amenable number.

51630630336 is an abundant number, since it is smaller than the sum of its proper divisors (102642446944).

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

51630630336 is a wasteful number, since it uses less digits than its factorization.

51630630336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489899 (or 489883 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 36.

The spelling of 51630630336 in words is "fifty-one billion, six hundred thirty million, six hundred thirty thousand, three hundred thirty-six".