56111727784 has 32 divisors (see below), whose sum is σ = 120667348800. Its totient is φ = 23962296960.

The previous prime is 56111727781. The next prime is 56111727787. The reversal of 56111727784 is 48772711165.

It is an interprime number because it is at equal distance from previous prime (56111727781) and next prime (56111727787).

It is not an unprimeable number, because it can be changed into a prime (56111727781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1767174 + ... + 1798645.

It is an arithmetic number, because the mean of its divisors is an integer number (3770854650).

Almost surely, 2^56111727784 is an apocalyptic number.

It is an amenable number.

56111727784 is an abundant number, since it is smaller than the sum of its proper divisors (64555621016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56111727784 is a wasteful number, since it uses less digits than its factorization.

56111727784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566113 (or 3566109 counting only the distinct ones).

The product of its digits is 658560, while the sum is 49.

The spelling of 56111727784 in words is "fifty-six billion, one hundred eleven million, seven hundred twenty-seven thousand, seven hundred eighty-four".