56805108678 has 40 divisors (see below), whose sum is σ = 133984766520. Its totient is φ = 17938454400.

The previous prime is 56805108653. The next prime is 56805108739. The reversal of 56805108678 is 87680150865.

56805108678 is a `hidden beast` number, since 5 + 68 + 0 + 510 + 8 + 67 + 8 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9224523 + ... + 9230678.

It is an arithmetic number, because the mean of its divisors is an integer number (3349619163).

Almost surely, 2^56805108678 is an apocalyptic number.

56805108678 is an abundant number, since it is smaller than the sum of its proper divisors (77179657842).

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

56805108678 is a wasteful number, since it uses less digits than its factorization.

56805108678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18455234 (or 18455225 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 56805108678 in words is "fifty-six billion, eight hundred five million, one hundred eight thousand, six hundred seventy-eight".