56194878887 has 48 divisors (see below), whose sum is σ = 70898208768. Its totient is φ = 44236926720.

The previous prime is 56194878877. The next prime is 56194878893. The reversal of 56194878887 is 78887849165.

It is not a de Polignac number, because 56194878887 - 2¹⁶ = 56194813351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56194878887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56194878827) 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, 14366462 + ... + 14370372.

It is an arithmetic number, because the mean of its divisors is an integer number (1477046016).

Almost surely, 2^56194878887 is an apocalyptic number.

56194878887 is a deficient number, since it is larger than the sum of its proper divisors (14703329881).

56194878887 is a wasteful number, since it uses less digits than its factorization.

56194878887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356 (or 4349 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 71.

The spelling of 56194878887 in words is "fifty-six billion, one hundred ninety-four million, eight hundred seventy-eight thousand, eight hundred eighty-seven".