51352516646045 has 32 divisors (see below), whose sum is σ = 62530443659520. Its totient is φ = 40481406837760.

The previous prime is 51352516646021. The next prime is 51352516646099. The reversal of 51352516646045 is 54064661525315.

It is not a de Polignac number, because 51352516646045 - 2²⁰ = 51352515597469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 444025967 + ... + 444141603.

It is an arithmetic number, because the mean of its divisors is an integer number (1954076364360).

Almost surely, 2^{51352516646045} is an apocalyptic number.

It is an amenable number.

51352516646045 is a deficient number, since it is larger than the sum of its proper divisors (11177927013475).

51352516646045 is a wasteful number, since it uses less digits than its factorization.

51352516646045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120325.

The product of its (nonzero) digits is 12960000, while the sum is 53.

The spelling of 51352516646045 in words is "fifty-one trillion, three hundred fifty-two billion, five hundred sixteen million, six hundred forty-six thousand, forty-five".