56824138643 has 4 divisors (see below), whose sum is σ = 56886790200. Its totient is φ = 56761487088.

The previous prime is 56824138607. The next prime is 56824138687. The reversal of 56824138643 is 34683142865.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56824138643 - 2¹² = 56824134547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56824138591 and 56824138600.

It is not an unprimeable number, because it can be changed into a prime (56824138243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31324418 + ... + 31326231.

It is an arithmetic number, because the mean of its divisors is an integer number (14221697550).

Almost surely, 2^56824138643 is an apocalyptic number.

56824138643 is a deficient number, since it is larger than the sum of its proper divisors (62651557).

56824138643 is an equidigital number, since it uses as much as digits as its factorization.

56824138643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62651556.

The product of its digits is 3317760, while the sum is 50.

The spelling of 56824138643 in words is "fifty-six billion, eight hundred twenty-four million, one hundred thirty-eight thousand, six hundred forty-three".