51065652652351 has 4 divisors (see below), whose sum is σ = 52826537226600. Its totient is φ = 49304768078104.

The previous prime is 51065652652337. The next prime is 51065652652367. The reversal of 51065652652351 is 15325625656015.

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 51065652652351 - 2¹³ = 51065652644159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51065652662351) 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, 880442287081 + ... + 880442287138.

It is an arithmetic number, because the mean of its divisors is an integer number (13206634306650).

Almost surely, 2^{51065652652351} is an apocalyptic number.

51065652652351 is a deficient number, since it is larger than the sum of its proper divisors (1760884574249).

51065652652351 is a wasteful number, since it uses less digits than its factorization.

51065652652351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760884574248.

The product of its (nonzero) digits is 8100000, while the sum is 52.

The spelling of 51065652652351 in words is "fifty-one trillion, sixty-five billion, six hundred fifty-two million, six hundred fifty-two thousand, three hundred fifty-one".