11495573917 has 2 divisors, whose sum is σ = 11495573918. Its totient is φ = 11495573916.

The previous prime is 11495573911. The next prime is 11495573989. The reversal of 11495573917 is 71937559411.

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., 10089398916 + 1406175001 = 100446^2 + 37499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11495573917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11495573911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5747786958 + 5747786959.

It is an arithmetic number, because the mean of its divisors is an integer number (5747786959).

Almost surely, 2^11495573917 is an apocalyptic number.

It is an amenable number.

11495573917 is a deficient number, since it is larger than the sum of its proper divisors (1).

11495573917 is an equidigital number, since it uses as much as digits as its factorization.

11495573917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1190700, while the sum is 52.

The spelling of 11495573917 in words is "eleven billion, four hundred ninety-five million, five hundred seventy-three thousand, nine hundred seventeen".