56111672839 has 4 divisors (see below), whose sum is σ = 56113561224. Its totient is φ = 56109784456.

The previous prime is 56111672819. The next prime is 56111672861. The reversal of 56111672839 is 93827611165.

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 56111672839 - 2¹³ = 56111664647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56111672792 and 56111672801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56111672819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898897 + ... + 959290.

It is an arithmetic number, because the mean of its divisors is an integer number (14028390306).

Almost surely, 2^56111672839 is an apocalyptic number.

56111672839 is a deficient number, since it is larger than the sum of its proper divisors (1888385).

56111672839 is a wasteful number, since it uses less digits than its factorization.

56111672839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888384.

The product of its digits is 544320, while the sum is 49.

The spelling of 56111672839 in words is "fifty-six billion, one hundred eleven million, six hundred seventy-two thousand, eight hundred thirty-nine".