51086449136954 has 32 divisors (see below), whose sum is σ = 96747640012800. Its totient is φ = 19651864368240.

The previous prime is 51086449136851. The next prime is 51086449137023. The reversal of 51086449136954 is 45963194468015.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2099545994 + ... + 2099570325.

It is an arithmetic number, because the mean of its divisors is an integer number (3023363750400).

Almost surely, 2^{51086449136954} is an apocalyptic number.

51086449136954 is a deficient number, since it is larger than the sum of its proper divisors (45661190875846).

51086449136954 is a wasteful number, since it uses less digits than its factorization.

51086449136954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4199116418.

The product of its (nonzero) digits is 111974400, while the sum is 65.

The spelling of 51086449136954 in words is "fifty-one trillion, eighty-six billion, four hundred forty-nine million, one hundred thirty-six thousand, nine hundred fifty-four".