268974274213 has 2 divisors, whose sum is σ = 268974274214. Its totient is φ = 268974274212.

The previous prime is 268974274211. The next prime is 268974274229. The reversal of 268974274213 is 312472479862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198379378404 + 70594895809 = 445398^2 + 265697^2 .

It is a cyclic number.

It is not a de Polignac number, because 268974274213 - 2¹ = 268974274211 is a prime.

Together with 268974274211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268974274211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134487137106 + 134487137107.

It is an arithmetic number, because the mean of its divisors is an integer number (134487137107).

Almost surely, 2^268974274213 is an apocalyptic number.

It is an amenable number.

268974274213 is a deficient number, since it is larger than the sum of its proper divisors (1).

268974274213 is an equidigital number, since it uses as much as digits as its factorization.

268974274213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8128512, while the sum is 55.

The spelling of 268974274213 in words is "two hundred sixty-eight billion, nine hundred seventy-four million, two hundred seventy-four thousand, two hundred thirteen".