11724264491 has 2 divisors, whose sum is σ = 11724264492. Its totient is φ = 11724264490.

The previous prime is 11724264479. The next prime is 11724264509. The reversal of 11724264491 is 19446242711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11724264491 - 2⁶ = 11724264427 is a prime.

It is not a weakly prime, because it can be changed into another prime (11724264451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5862132245 + 5862132246.

It is an arithmetic number, because the mean of its divisors is an integer number (5862132246).

Almost surely, 2^11724264491 is an apocalyptic number.

11724264491 is a deficient number, since it is larger than the sum of its proper divisors (1).

11724264491 is an equidigital number, since it uses as much as digits as its factorization.

11724264491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The spelling of 11724264491 in words is "eleven billion, seven hundred twenty-four million, two hundred sixty-four thousand, four hundred ninety-one".