56111728339 has 8 divisors (see below), whose sum is σ = 57112076240. Its totient is φ = 55113976800.

The previous prime is 56111728327. The next prime is 56111728399. The reversal of 56111728339 is 93382711165.

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 56111728339 - 2¹⁵ = 56111695571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56111728319) 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, 605457 + ... + 691954.

It is an arithmetic number, because the mean of its divisors is an integer number (7139009530).

Almost surely, 2^56111728339 is an apocalyptic number.

56111728339 is a deficient number, since it is larger than the sum of its proper divisors (1000347901).

56111728339 is a wasteful number, since it uses less digits than its factorization.

56111728339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298181.

The product of its digits is 272160, while the sum is 46.

The spelling of 56111728339 in words is "fifty-six billion, one hundred eleven million, seven hundred twenty-eight thousand, three hundred thirty-nine".