210734791513 has 2 divisors, whose sum is σ = 210734791514. Its totient is φ = 210734791512.

The previous prime is 210734791511. The next prime is 210734791529. The reversal of 210734791513 is 315197437012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112958504649 + 97776286864 = 336093^2 + 312692^2 .

It is a cyclic number.

It is not a de Polignac number, because 210734791513 - 2¹ = 210734791511 is a prime.

Together with 210734791511, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 210734791513.

It is not a weakly prime, because it can be changed into another prime (210734791511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105367395756 + 105367395757.

It is an arithmetic number, because the mean of its divisors is an integer number (105367395757).

Almost surely, 2^210734791513 is an apocalyptic number.

It is an amenable number.

210734791513 is a deficient number, since it is larger than the sum of its proper divisors (1).

210734791513 is an equidigital number, since it uses as much as digits as its factorization.

210734791513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 210734791513 in words is "two hundred ten billion, seven hundred thirty-four million, seven hundred ninety-one thousand, five hundred thirteen".