51338150771507 has 4 divisors (see below), whose sum is σ = 51485251490400. Its totient is φ = 51191050052616.

The previous prime is 51338150771483. The next prime is 51338150771527. The reversal of 51338150771507 is 70517705183315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51338150771507 - 2¹² = 51338150767411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51338150771527) 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, 73550358923 + ... + 73550359620.

It is an arithmetic number, because the mean of its divisors is an integer number (12871312872600).

Almost surely, 2^{51338150771507} is an apocalyptic number.

51338150771507 is a deficient number, since it is larger than the sum of its proper divisors (147100718893).

51338150771507 is a wasteful number, since it uses less digits than its factorization.

51338150771507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147100718892.

The product of its (nonzero) digits is 3087000, while the sum is 53.

The spelling of 51338150771507 in words is "fifty-one trillion, three hundred thirty-eight billion, one hundred fifty million, seven hundred seventy-one thousand, five hundred seven".