56877753816 has 192 divisors, whose sum is σ = 167421945600. Its totient is φ = 17340466176.

The previous prime is 56877753811. The next prime is 56877753839. The reversal of 56877753816 is 61835777865.

56877753816 is a `hidden beast` number, since 5 + 6 + 87 + 7 + 7 + 538 + 16 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56877753811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56147326 + ... + 56148338.

It is an arithmetic number, because the mean of its divisors is an integer number (871989300).

Almost surely, 2^56877753816 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 56877753816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83710972800).

56877753816 is an abundant number, since it is smaller than the sum of its proper divisors (110544191784).

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

56877753816 is a wasteful number, since it uses less digits than its factorization.

56877753816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530 (or 1523 counting only the distinct ones).

The product of its digits is 59270400, while the sum is 63.

The spelling of 56877753816 in words is "fifty-six billion, eight hundred seventy-seven million, seven hundred fifty-three thousand, eight hundred sixteen".