51619772514 has 32 divisors (see below), whose sum is σ = 103676348160. Its totient is φ = 17133887232.

The previous prime is 51619772497. The next prime is 51619772521. The reversal of 51619772514 is 41527791615.

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, 2268807 + ... + 2291445.

It is an arithmetic number, because the mean of its divisors is an integer number (3239885880).

Almost surely, 2^51619772514 is an apocalyptic number.

51619772514 is an abundant number, since it is smaller than the sum of its proper divisors (52056575646).

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

51619772514 is a wasteful number, since it uses less digits than its factorization.

51619772514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24234.

The product of its digits is 529200, while the sum is 48.

The spelling of 51619772514 in words is "fifty-one billion, six hundred nineteen million, seven hundred seventy-two thousand, five hundred fourteen".