56783979178 has 8 divisors (see below), whose sum is σ = 85183060068. Its totient is φ = 28389625824.

The previous prime is 56783979167. The next prime is 56783979199. The reversal of 56783979178 is 87197938765.

It can be written as a sum of positive squares in 2 ways, for example, as 41876301769 + 14907677409 = 204637^2 + 122097^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151701 + ... + 1199992.

Almost surely, 2^56783979178 is an apocalyptic number.

56783979178 is a deficient number, since it is larger than the sum of its proper divisors (28399080890).

56783979178 is a wasteful number, since it uses less digits than its factorization.

56783979178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363768.

The product of its digits is 160030080, while the sum is 70.

The spelling of 56783979178 in words is "fifty-six billion, seven hundred eighty-three million, nine hundred seventy-nine thousand, one hundred seventy-eight".