56856443615 has 8 divisors (see below), whose sum is σ = 68260436640. Its totient is φ = 45463352032.

The previous prime is 56856443549. The next prime is 56856443617. The reversal of 56856443615 is 51634465865.

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 56856443615 - 2²⁴ = 56839666399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56856443617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2713880 + ... + 2734749.

It is an arithmetic number, because the mean of its divisors is an integer number (8532554580).

Almost surely, 2^56856443615 is an apocalyptic number.

56856443615 is a deficient number, since it is larger than the sum of its proper divisors (11403993025).

56856443615 is a wasteful number, since it uses less digits than its factorization.

56856443615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5450721.

The product of its digits is 10368000, while the sum is 53.

The spelling of 56856443615 in words is "fifty-six billion, eight hundred fifty-six million, four hundred forty-three thousand, six hundred fifteen".