56561676743 has 16 divisors (see below), whose sum is σ = 66527225856. Its totient is φ = 47409241440.

The previous prime is 56561676737. The next prime is 56561676793. The reversal of 56561676743 is 34767616565.

It is not a de Polignac number, because 56561676743 - 2⁶ = 56561676679 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56561676793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105755 + ... + 352572.

It is an arithmetic number, because the mean of its divisors is an integer number (4157951616).

Almost surely, 2^56561676743 is an apocalyptic number.

56561676743 is a deficient number, since it is larger than the sum of its proper divisors (9965549113).

56561676743 is a wasteful number, since it uses less digits than its factorization.

56561676743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459214.

The product of its digits is 19051200, while the sum is 56.

The spelling of 56561676743 in words is "fifty-six billion, five hundred sixty-one million, six hundred seventy-six thousand, seven hundred forty-three".