56439116186 has 4 divisors (see below), whose sum is σ = 84658674282. Its totient is φ = 28219558092.

The previous prime is 56439116137. The next prime is 56439116233. The reversal of 56439116186 is 68161193465.

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

It can be written as a sum of positive squares in only one way, i.e., 31606083961 + 24833032225 = 177781^2 + 157585^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14109779045 + ... + 14109779048.

Almost surely, 2^56439116186 is an apocalyptic number.

56439116186 is a deficient number, since it is larger than the sum of its proper divisors (28219558096).

56439116186 is a wasteful number, since it uses less digits than its factorization.

56439116186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28219558095.

The product of its digits is 933120, while the sum is 50.

The spelling of 56439116186 in words is "fifty-six billion, four hundred thirty-nine million, one hundred sixteen thousand, one hundred eighty-six".