56478300687 has 12 divisors (see below), whose sum is σ = 81595770880. Its totient is φ = 37644814368.

The previous prime is 56478300673. The next prime is 56478300727. The reversal of 56478300687 is 78600387465.

56478300687 is a `hidden beast` number, since 564 + 78 + 3 + 0 + 0 + 6 + 8 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-56478300687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56478300287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 566878 + ... + 659019.

Almost surely, 2^56478300687 is an apocalyptic number.

56478300687 is a deficient number, since it is larger than the sum of its proper divisors (25117470193).

56478300687 is a wasteful number, since it uses less digits than its factorization.

56478300687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231022 (or 1231019 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 56478300687 in words is "fifty-six billion, four hundred seventy-eight million, three hundred thousand, six hundred eighty-seven".