56623840679 has 8 divisors (see below), whose sum is σ = 68118906240. Its totient is φ = 45980261496.

The previous prime is 56623840661. The next prime is 56623840739. The reversal of 56623840679 is 97604832665.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56623840679 - 2⁸ = 56623840423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56623840619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212871449 + ... + 212871714.

It is an arithmetic number, because the mean of its divisors is an integer number (8514863280).

Almost surely, 2^56623840679 is an apocalyptic number.

56623840679 is a deficient number, since it is larger than the sum of its proper divisors (11495065561).

56623840679 is a wasteful number, since it uses less digits than its factorization.

56623840679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425743189.

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 56623840679 in words is "fifty-six billion, six hundred twenty-three million, eight hundred forty thousand, six hundred seventy-nine".