11423975657 has 2 divisors, whose sum is σ = 11423975658. Its totient is φ = 11423975656.

The previous prime is 11423975611. The next prime is 11423975677. The reversal of 11423975657 is 75657932411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7371252736 + 4052722921 = 85856^2 + 63661^2 .

It is a cyclic number.

It is not a de Polignac number, because 11423975657 - 2¹⁰ = 11423974633 is a prime.

It is not a weakly prime, because it can be changed into another prime (11423975677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5711987828 + 5711987829.

It is an arithmetic number, because the mean of its divisors is an integer number (5711987829).

Almost surely, 2^11423975657 is an apocalyptic number.

It is an amenable number.

11423975657 is a deficient number, since it is larger than the sum of its proper divisors (1).

11423975657 is an equidigital number, since it uses as much as digits as its factorization.

11423975657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1587600, while the sum is 50.

The spelling of 11423975657 in words is "eleven billion, four hundred twenty-three million, nine hundred seventy-five thousand, six hundred fifty-seven".