56863491984 has 120 divisors (see below), whose sum is σ = 172407423552. Its totient is φ = 17391594240.

The previous prime is 56863491929. The next prime is 56863491989. The reversal of 56863491984 is 48919436865.

56863491984 is a `hidden beast` number, since 5 + 6 + 8 + 63 + 491 + 9 + 84 = 666.

It is a super-2 number, since 2×56863491984² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56863491989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221679 + ... + 403569.

Almost surely, 2^56863491984 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 56863491984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86203711776).

56863491984 is an abundant number, since it is smaller than the sum of its proper divisors (115543931568).

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

56863491984 is a wasteful number, since it uses less digits than its factorization.

56863491984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182085 (or 182076 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 63.

The spelling of 56863491984 in words is "fifty-six billion, eight hundred sixty-three million, four hundred ninety-one thousand, nine hundred eighty-four".