51630234884 has 12 divisors (see below), whose sum is σ = 90357564108. Its totient is φ = 25813788000.

The previous prime is 51630234881. The next prime is 51630234899. The reversal of 51630234884 is 48843203615.

It can be written as a sum of positive squares in 2 ways, for example, as 3547393600 + 48082841284 = 59560^2 + 219278^2 .

It is not an unprimeable number, because it can be changed into a prime (51630234881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242267 + ... + 402434.

It is an arithmetic number, because the mean of its divisors is an integer number (7529797009).

Almost surely, 2^51630234884 is an apocalyptic number.

It is an amenable number.

51630234884 is a deficient number, since it is larger than the sum of its proper divisors (38727329224).

51630234884 is a wasteful number, since it uses less digits than its factorization.

51630234884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664726 (or 664724 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 51630234884 in words is "fifty-one billion, six hundred thirty million, two hundred thirty-four thousand, eight hundred eighty-four".