56723178171 has 32 divisors (see below), whose sum is σ = 85272938496. Its totient is φ = 33227712000.

The previous prime is 56723178131. The next prime is 56723178173. The reversal of 56723178171 is 17187132765.

It is not a de Polignac number, because 56723178171 - 2³⁰ = 55649436347 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 56723178171.

It is not an unprimeable number, because it can be changed into a prime (56723178173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 806115 + ... + 873651.

It is an arithmetic number, because the mean of its divisors is an integer number (2664779328).

Almost surely, 2^56723178171 is an apocalyptic number.

56723178171 is a deficient number, since it is larger than the sum of its proper divisors (28549760325).

56723178171 is a wasteful number, since it uses less digits than its factorization.

56723178171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68403.

The product of its digits is 493920, while the sum is 48.

The spelling of 56723178171 in words is "fifty-six billion, seven hundred twenty-three million, one hundred seventy-eight thousand, one hundred seventy-one".