11564426453 has 2 divisors, whose sum is σ = 11564426454. Its totient is φ = 11564426452.

The previous prime is 11564426431. The next prime is 11564426509. The reversal of 11564426453 is 35462446511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8700785284 + 2863641169 = 93278^2 + 53513^2 .

It is a cyclic number.

It is not a de Polignac number, because 11564426453 - 2¹² = 11564422357 is a prime.

It is a super-2 number, since 2×11564426453² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11564426453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11564429453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5782213226 + 5782213227.

It is an arithmetic number, because the mean of its divisors is an integer number (5782213227).

Almost surely, 2^11564426453 is an apocalyptic number.

It is an amenable number.

11564426453 is a deficient number, since it is larger than the sum of its proper divisors (1).

11564426453 is an equidigital number, since it uses as much as digits as its factorization.

11564426453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 41.

The spelling of 11564426453 in words is "eleven billion, five hundred sixty-four million, four hundred twenty-six thousand, four hundred fifty-three".