51495800399744 has 32 divisors (see below), whose sum is σ = 103277808621000. Its totient is φ = 25575095491072.

The previous prime is 51495800399737. The next prime is 51495800399759. The reversal of 51495800399744 is 44799300859415.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1350017642 + ... + 1350055785.

Almost surely, 2^{51495800399744} is an apocalyptic number.

It is an amenable number.

51495800399744 is an abundant number, since it is smaller than the sum of its proper divisors (51782008221256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51495800399744 is a wasteful number, since it uses less digits than its factorization.

51495800399744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700073590 (or 2700073578 counting only the distinct ones).

The product of its (nonzero) digits is 195955200, while the sum is 68.

The spelling of 51495800399744 in words is "fifty-one trillion, four hundred ninety-five billion, eight hundred million, three hundred ninety-nine thousand, seven hundred forty-four".