56671722187 has 2 divisors, whose sum is σ = 56671722188. Its totient is φ = 56671722186.

The previous prime is 56671722103. The next prime is 56671722227. The reversal of 56671722187 is 78122717665.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56671722187 - 2¹¹ = 56671720139 is a prime.

It is not a weakly prime, because it can be changed into another prime (56671722487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28335861093 + 28335861094.

It is an arithmetic number, because the mean of its divisors is an integer number (28335861094).

Almost surely, 2^56671722187 is an apocalyptic number.

56671722187 is a deficient number, since it is larger than the sum of its proper divisors (1).

56671722187 is an equidigital number, since it uses as much as digits as its factorization.

56671722187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1975680, while the sum is 52.

The spelling of 56671722187 in words is "fifty-six billion, six hundred seventy-one million, seven hundred twenty-two thousand, one hundred eighty-seven".