210972657719 has 2 divisors, whose sum is σ = 210972657720. Its totient is φ = 210972657718.

The previous prime is 210972657713. The next prime is 210972657853. The reversal of 210972657719 is 917756279012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210972657719 - 2²⁸ = 210704222263 is a prime.

It is a super-2 number, since 2×210972657719² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210972657713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105486328859 + 105486328860.

It is an arithmetic number, because the mean of its divisors is an integer number (105486328860).

Almost surely, 2^210972657719 is an apocalyptic number.

210972657719 is a deficient number, since it is larger than the sum of its proper divisors (1).

210972657719 is an equidigital number, since it uses as much as digits as its factorization.

210972657719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3333960, while the sum is 56.

The spelling of 210972657719 in words is "two hundred ten billion, nine hundred seventy-two million, six hundred fifty-seven thousand, seven hundred nineteen".