51502342130511 has 4 divisors (see below), whose sum is σ = 68669789507352. Its totient is φ = 34334894753672.

The previous prime is 51502342130509. The next prime is 51502342130537. The reversal of 51502342130511 is 11503124320515.

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 51502342130511 - 2¹ = 51502342130509 is a prime.

It is a super-2 number, since 2×51502342130511² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51502342134511) 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, 8583723688416 + ... + 8583723688421.

It is an arithmetic number, because the mean of its divisors is an integer number (17167447376838).

Almost surely, 2^{51502342130511} is an apocalyptic number.

51502342130511 is a deficient number, since it is larger than the sum of its proper divisors (17167447376841).

51502342130511 is a wasteful number, since it uses less digits than its factorization.

51502342130511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17167447376840.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 51502342130511 in words is "fifty-one trillion, five hundred two billion, three hundred forty-two million, one hundred thirty thousand, five hundred eleven".