56899578478 has 8 divisors (see below), whose sum is σ = 85381619472. Its totient is φ = 28439038656.

The previous prime is 56899578469. The next prime is 56899578481. The reversal of 56899578478 is 87487599865.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5368675 + ... + 5379262.

It is an arithmetic number, because the mean of its divisors is an integer number (10672702434).

Almost surely, 2^56899578478 is an apocalyptic number.

56899578478 is a deficient number, since it is larger than the sum of its proper divisors (28482040994).

56899578478 is a wasteful number, since it uses less digits than its factorization.

56899578478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10750586.

The product of its digits is 1219276800, while the sum is 76.

The spelling of 56899578478 in words is "fifty-six billion, eight hundred ninety-nine million, five hundred seventy-eight thousand, four hundred seventy-eight".