51465300538 has 16 divisors (see below), whose sum is σ = 78662362464. Its totient is φ = 25247574000.

The previous prime is 51465300527. The next prime is 51465300539. The reversal of 51465300538 is 83500356415.

It is a self number, because there is not a number n which added to its sum of digits gives 51465300538.

It is not an unprimeable number, because it can be changed into a prime (51465300539) 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, 731445 + ... + 798712.

It is an arithmetic number, because the mean of its divisors is an integer number (4916397654).

Almost surely, 2^51465300538 is an apocalyptic number.

51465300538 is a deficient number, since it is larger than the sum of its proper divisors (27197061926).

51465300538 is a wasteful number, since it uses less digits than its factorization.

51465300538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530477.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 51465300538 in words is "fifty-one billion, four hundred sixty-five million, three hundred thousand, five hundred thirty-eight".