11814018257 has 2 divisors, whose sum is σ = 11814018258. Its totient is φ = 11814018256.

The previous prime is 11814018247. The next prime is 11814018323. The reversal of 11814018257 is 75281041811.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7362326416 + 4451691841 = 85804^2 + 66721^2 .

It is a cyclic number.

It is not a de Polignac number, because 11814018257 - 2²⁰ = 11812969681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11814018257.

It is not a weakly prime, because it can be changed into another prime (11814018217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5907009128 + 5907009129.

It is an arithmetic number, because the mean of its divisors is an integer number (5907009129).

Almost surely, 2^11814018257 is an apocalyptic number.

It is an amenable number.

11814018257 is a deficient number, since it is larger than the sum of its proper divisors (1).

11814018257 is an equidigital number, since it uses as much as digits as its factorization.

11814018257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17920, while the sum is 38.

The spelling of 11814018257 in words is "eleven billion, eight hundred fourteen million, eighteen thousand, two hundred fifty-seven".