56742650671 has 12 divisors (see below), whose sum is σ = 66024946800. Its totient is φ = 48623154720.

The previous prime is 56742650659. The next prime is 56742650689. The reversal of 56742650671 is 17605624765.

It is not a de Polignac number, because 56742650671 - 2¹⁷ = 56742519599 is a prime.

It is a super-2 number, since 2×56742650671² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56742650651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22155 + ... + 337603.

It is an arithmetic number, because the mean of its divisors is an integer number (5502078900).

Almost surely, 2^56742650671 is an apocalyptic number.

56742650671 is a deficient number, since it is larger than the sum of its proper divisors (9282296129).

56742650671 is a wasteful number, since it uses less digits than its factorization.

56742650671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319134 (or 319127 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 56742650671 in words is "fifty-six billion, seven hundred forty-two million, six hundred fifty thousand, six hundred seventy-one".