56979196187 has 2 divisors, whose sum is σ = 56979196188. Its totient is φ = 56979196186.

The previous prime is 56979196151. The next prime is 56979196189. The reversal of 56979196187 is 78169197965.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56979196187 - 2¹² = 56979192091 is a prime.

Together with 56979196189, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56979196189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28489598093 + 28489598094.

It is an arithmetic number, because the mean of its divisors is an integer number (28489598094).

Almost surely, 2^56979196187 is an apocalyptic number.

56979196187 is a deficient number, since it is larger than the sum of its proper divisors (1).

56979196187 is an equidigital number, since it uses as much as digits as its factorization.

56979196187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51438240, while the sum is 68.

The spelling of 56979196187 in words is "fifty-six billion, nine hundred seventy-nine million, one hundred ninety-six thousand, one hundred eighty-seven".