51728577574 has 16 divisors (see below), whose sum is σ = 79159044528. Its totient is φ = 25346230272.

The previous prime is 51728577533. The next prime is 51728577601. The reversal of 51728577574 is 47577582715.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974227 + ... + 1025950.

It is an arithmetic number, because the mean of its divisors is an integer number (4947440283).

Almost surely, 2^51728577574 is an apocalyptic number.

51728577574 is a deficient number, since it is larger than the sum of its proper divisors (27430466954).

51728577574 is a wasteful number, since it uses less digits than its factorization.

51728577574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000439.

The product of its digits is 19208000, while the sum is 58.

The spelling of 51728577574 in words is "fifty-one billion, seven hundred twenty-eight million, five hundred seventy-seven thousand, five hundred seventy-four".