11974968413 has 2 divisors, whose sum is σ = 11974968414. Its totient is φ = 11974968412.

The previous prime is 11974968409. The next prime is 11974968427. The reversal of 11974968413 is 31486947911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6431719204 + 5543249209 = 80198^2 + 74453^2 .

It is a cyclic number.

It is not a de Polignac number, because 11974968413 - 2² = 11974968409 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11974968433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5987484206 + 5987484207.

It is an arithmetic number, because the mean of its divisors is an integer number (5987484207).

Almost surely, 2^11974968413 is an apocalyptic number.

It is an amenable number.

11974968413 is a deficient number, since it is larger than the sum of its proper divisors (1).

11974968413 is an equidigital number, since it uses as much as digits as its factorization.

11974968413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 53.

The spelling of 11974968413 in words is "eleven billion, nine hundred seventy-four million, nine hundred sixty-eight thousand, four hundred thirteen".