11841864257 has 2 divisors, whose sum is σ = 11841864258. Its totient is φ = 11841864256.

The previous prime is 11841864239. The next prime is 11841864269. The reversal of 11841864257 is 75246814811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6298168321 + 5543695936 = 79361^2 + 74456^2 .

It is a cyclic number.

It is not a de Polignac number, because 11841864257 - 2³⁰ = 10768122433 is a prime.

It is not a weakly prime, because it can be changed into another prime (11841864227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5920932128 + 5920932129.

It is an arithmetic number, because the mean of its divisors is an integer number (5920932129).

Almost surely, 2^11841864257 is an apocalyptic number.

It is an amenable number.

11841864257 is a deficient number, since it is larger than the sum of its proper divisors (1).

11841864257 is an equidigital number, since it uses as much as digits as its factorization.

11841864257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 430080, while the sum is 47.

The spelling of 11841864257 in words is "eleven billion, eight hundred forty-one million, eight hundred sixty-four thousand, two hundred fifty-seven".