56899527878 has 4 divisors (see below), whose sum is σ = 85349291820. Its totient is φ = 28449763938.

The previous prime is 56899527857. The next prime is 56899527911. The reversal of 56899527878 is 87872599865.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14224881968 + ... + 14224881971.

It is an arithmetic number, because the mean of its divisors is an integer number (21337322955).

Almost surely, 2^56899527878 is an apocalyptic number.

56899527878 is a deficient number, since it is larger than the sum of its proper divisors (28449763942).

56899527878 is a wasteful number, since it uses less digits than its factorization.

56899527878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28449763941.

The product of its digits is 609638400, while the sum is 74.

The spelling of 56899527878 in words is "fifty-six billion, eight hundred ninety-nine million, five hundred twenty-seven thousand, eight hundred seventy-eight".