56787805548 has 72 divisors (see below), whose sum is σ = 147551092416. Its totient is φ = 18404409600.

The previous prime is 56787805519. The next prime is 56787805573. The reversal of 56787805548 is 84550878765.

56787805548 is a `hidden beast` number, since 5 + 6 + 7 + 8 + 7 + 80 + 5 + 548 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 366813 + ... + 498123.

It is an arithmetic number, because the mean of its divisors is an integer number (2049320728).

Almost surely, 2^56787805548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56787805548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73775546208).

56787805548 is an abundant number, since it is smaller than the sum of its proper divisors (90763286868).

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

56787805548 is a wasteful number, since it uses less digits than its factorization.

56787805548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131655 (or 131650 counting only the distinct ones).

The product of its (nonzero) digits is 75264000, while the sum is 63.

The spelling of 56787805548 in words is "fifty-six billion, seven hundred eighty-seven million, eight hundred five thousand, five hundred forty-eight".