11455636457 has 2 divisors, whose sum is σ = 11455636458. Its totient is φ = 11455636456.

The previous prime is 11455636417. The next prime is 11455636469. The reversal of 11455636457 is 75463655411.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10930493401 + 525143056 = 104549^2 + 22916^2 .

It is a cyclic number.

It is not a de Polignac number, because 11455636457 - 2⁶ = 11455636393 is a prime.

It is not a weakly prime, because it can be changed into another prime (11455636417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5727818228 + 5727818229.

It is an arithmetic number, because the mean of its divisors is an integer number (5727818229).

Almost surely, 2^11455636457 is an apocalyptic number.

It is an amenable number.

11455636457 is a deficient number, since it is larger than the sum of its proper divisors (1).

11455636457 is an equidigital number, since it uses as much as digits as its factorization.

11455636457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512000, while the sum is 47.

The spelling of 11455636457 in words is "eleven billion, four hundred fifty-five million, six hundred thirty-six thousand, four hundred fifty-seven".