56179999978 has 8 divisors (see below), whose sum is σ = 84271109472. Its totient is φ = 28089630156.

The previous prime is 56179999969. The next prime is 56179999987. The reversal of 56179999978 is 87999997165.

It is an interprime number because it is at equal distance from previous prime (56179999969) and next prime (56179999987).

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

It is a junction number, because it is equal to n+sod(n) for n = 56179999898 and 56179999907.

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, 82051 + ... + 345097.

It is an arithmetic number, because the mean of its divisors is an integer number (10533888684).

Almost surely, 2^56179999978 is an apocalyptic number.

56179999978 is a deficient number, since it is larger than the sum of its proper divisors (28091109494).

56179999978 is a wasteful number, since it uses less digits than its factorization.

56179999978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369836.

The product of its digits is 694416240, while the sum is 79.

The spelling of 56179999978 in words is "fifty-six billion, one hundred seventy-nine million, nine hundred ninety-nine thousand, nine hundred seventy-eight".