51656454523748 has 12 divisors (see below), whose sum is σ = 90405021759360. Its totient is φ = 25826448306792.

The previous prime is 51656454523649. The next prime is 51656454523781. The reversal of 51656454523748 is 84732545465615.

It is a hoax number, since the sum of its digits (65) coincides with the sum of the digits of its distinct prime factors.

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, 444673436 + ... + 444789587.

It is an arithmetic number, because the mean of its divisors is an integer number (7533751813280).

Almost surely, 2^{51656454523748} is an apocalyptic number.

It is an amenable number.

51656454523748 is a deficient number, since it is larger than the sum of its proper divisors (38748567235612).

51656454523748 is a wasteful number, since it uses less digits than its factorization.

51656454523748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889477546 (or 889477544 counting only the distinct ones).

The product of its digits is 483840000, while the sum is 65.

The spelling of 51656454523748 in words is "fifty-one trillion, six hundred fifty-six billion, four hundred fifty-four million, five hundred twenty-three thousand, seven hundred forty-eight".