56111727888 has 80 divisors (see below), whose sum is σ = 161095046400. Its totient is φ = 18700007040.

The previous prime is 56111727869. The next prime is 56111727907. The reversal of 56111727888 is 88872711165.

56111727888 is a `hidden beast` number, since 5 + 611 + 17 + 2 + 7 + 8 + 8 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (56111727869) and next prime (56111727907).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2677033 + ... + 2697911.

It is an arithmetic number, because the mean of its divisors is an integer number (2013688080).

Almost surely, 2^56111727888 is an apocalyptic number.

It is an amenable number.

56111727888 is an abundant number, since it is smaller than the sum of its proper divisors (104983318512).

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

56111727888 is a wasteful number, since it uses less digits than its factorization.

56111727888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27117 (or 27105 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 54.

The spelling of 56111727888 in words is "fifty-six billion, one hundred eleven million, seven hundred twenty-seven thousand, eight hundred eighty-eight".