51042465398 has 32 divisors (see below), whose sum is σ = 80544196800. Its totient is φ = 24213315456.

The previous prime is 51042465379. The next prime is 51042465401. The reversal of 51042465398 is 89356424015.

It is a congruent number.

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, 2824640 + ... + 2842652.

It is an arithmetic number, because the mean of its divisors is an integer number (2517006150).

Almost surely, 2^51042465398 is an apocalyptic number.

51042465398 is a deficient number, since it is larger than the sum of its proper divisors (29501731402).

51042465398 is a wasteful number, since it uses less digits than its factorization.

51042465398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18536.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 51042465398 in words is "fifty-one billion, forty-two million, four hundred sixty-five thousand, three hundred ninety-eight".