11198399652857 has 2 divisors, whose sum is σ = 11198399652858. Its totient is φ = 11198399652856.

The previous prime is 11198399652761. The next prime is 11198399652863. The reversal of 11198399652857 is 75825699389111.

11198399652857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7591727685481 + 3606671967376 = 2755309^2 + 1899124^2 .

It is a cyclic number.

It is not a de Polignac number, because 11198399652857 - 2²² = 11198395458553 is a prime.

It is not a weakly prime, because it can be changed into another prime (11198399652887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5599199826428 + 5599199826429.

It is an arithmetic number, because the mean of its divisors is an integer number (5599199826429).

Almost surely, 2^{11198399652857} is an apocalyptic number.

It is an amenable number.

11198399652857 is a deficient number, since it is larger than the sum of its proper divisors (1).

11198399652857 is an equidigital number, since it uses as much as digits as its factorization.

11198399652857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 293932800, while the sum is 74.

The spelling of 11198399652857 in words is "eleven trillion, one hundred ninety-eight billion, three hundred ninety-nine million, six hundred fifty-two thousand, eight hundred fifty-seven".