51425377126215 has 32 divisors (see below), whose sum is σ = 87121803013056. Its totient is φ = 25813177712640.

The previous prime is 51425377126177. The next prime is 51425377126237. The reversal of 51425377126215 is 51262177352415.

It is not a de Polignac number, because 51425377126215 - 2⁷ = 51425377126087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 18336619 + ... + 20954291.

It is an arithmetic number, because the mean of its divisors is an integer number (2722556344158).

Almost surely, 2^{51425377126215} is an apocalyptic number.

51425377126215 is a deficient number, since it is larger than the sum of its proper divisors (35696425886841).

51425377126215 is a wasteful number, since it uses less digits than its factorization.

51425377126215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694739.

The product of its digits is 3528000, while the sum is 51.

The spelling of 51425377126215 in words is "fifty-one trillion, four hundred twenty-five billion, three hundred seventy-seven million, one hundred twenty-six thousand, two hundred fifteen".