51147602517 has 16 divisors (see below), whose sum is σ = 78772779072. Its totient is φ = 29175102720.

The previous prime is 51147602509. The next prime is 51147602533. The reversal of 51147602517 is 71520674115.

It is not a de Polignac number, because 51147602517 - 2³ = 51147602509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51147602917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45585538 + ... + 45586659.

It is an arithmetic number, because the mean of its divisors is an integer number (4923298692).

Almost surely, 2^51147602517 is an apocalyptic number.

It is an amenable number.

51147602517 is a deficient number, since it is larger than the sum of its proper divisors (27625176555).

51147602517 is a wasteful number, since it uses less digits than its factorization.

51147602517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91172228.

The product of its (nonzero) digits is 58800, while the sum is 39.

The spelling of 51147602517 in words is "fifty-one billion, one hundred forty-seven million, six hundred two thousand, five hundred seventeen".