11857459193 has 2 divisors, whose sum is σ = 11857459194. Its totient is φ = 11857459192.

The previous prime is 11857459139. The next prime is 11857459213. The reversal of 11857459193 is 39195475811.

Together with previous prime (11857459139) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6073552489 + 5783906704 = 77933^2 + 76052^2 .

It is a cyclic number.

It is not a de Polignac number, because 11857459193 - 2¹² = 11857455097 is a prime.

It is a super-2 number, since 2×11857459193² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11857459093) 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, 5928729596 + 5928729597.

It is an arithmetic number, because the mean of its divisors is an integer number (5928729597).

Almost surely, 2^11857459193 is an apocalyptic number.

It is an amenable number.

11857459193 is a deficient number, since it is larger than the sum of its proper divisors (1).

11857459193 is an equidigital number, since it uses as much as digits as its factorization.

11857459193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 53.

The spelling of 11857459193 in words is "eleven billion, eight hundred fifty-seven million, four hundred fifty-nine thousand, one hundred ninety-three".