51506838470 has 32 divisors (see below), whose sum is σ = 93283112160. Its totient is φ = 20475980800.

The previous prime is 51506838469. The next prime is 51506838497. The reversal of 51506838470 is 7483860515.

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, 7696886 + ... + 7703574.

It is an arithmetic number, because the mean of its divisors is an integer number (2915097255).

Almost surely, 2^51506838470 is an apocalyptic number.

51506838470 is a deficient number, since it is larger than the sum of its proper divisors (41776273690).

51506838470 is a wasteful number, since it uses less digits than its factorization.

51506838470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11320.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 51506838470 in words is "fifty-one billion, five hundred six million, eight hundred thirty-eight thousand, four hundred seventy".