51437694824 has 32 divisors (see below), whose sum is σ = 103242492000. Its totient is φ = 23952249792.

The previous prime is 51437694821. The next prime is 51437694857. The reversal of 51437694824 is 42849673415.

It is not an unprimeable number, because it can be changed into a prime (51437694821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2858879 + ... + 2876814.

It is an arithmetic number, because the mean of its divisors is an integer number (3226327875).

Almost surely, 2^51437694824 is an apocalyptic number.

It is an amenable number.

51437694824 is an abundant number, since it is smaller than the sum of its proper divisors (51804797176).

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

51437694824 is a wasteful number, since it uses less digits than its factorization.

51437694824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5735777 (or 5735773 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 53.

It can be divided in two parts, 5143 and 7694824, that added together give a palindrome (7699967).

The spelling of 51437694824 in words is "fifty-one billion, four hundred thirty-seven million, six hundred ninety-four thousand, eight hundred twenty-four".