56729873951 has 2 divisors, whose sum is σ = 56729873952. Its totient is φ = 56729873950.

The previous prime is 56729873929. The next prime is 56729873999. The reversal of 56729873951 is 15937892765.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56729873951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56729803951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28364936975 + 28364936976.

It is an arithmetic number, because the mean of its divisors is an integer number (28364936976).

Almost surely, 2^56729873951 is an apocalyptic number.

56729873951 is a deficient number, since it is larger than the sum of its proper divisors (1).

56729873951 is an equidigital number, since it uses as much as digits as its factorization.

56729873951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28576800, while the sum is 62.

The spelling of 56729873951 in words is "fifty-six billion, seven hundred twenty-nine million, eight hundred seventy-three thousand, nine hundred fifty-one".