11911314709757 has 2 divisors, whose sum is σ = 11911314709758. Its totient is φ = 11911314709756.

The previous prime is 11911314709667. The next prime is 11911314709829. The reversal of 11911314709757 is 75790741311911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10382998174756 + 1528316535001 = 3222266^2 + 1236251^2 .

It is a cyclic number.

It is not a de Polignac number, because 11911314709757 - 2³² = 11907019742461 is a prime.

It is a super-2 number, since 2×11911314709757² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11911314709457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5955657354878 + 5955657354879.

It is an arithmetic number, because the mean of its divisors is an integer number (5955657354879).

Almost surely, 2^{11911314709757} is an apocalyptic number.

It is an amenable number.

11911314709757 is a deficient number, since it is larger than the sum of its proper divisors (1).

11911314709757 is an equidigital number, since it uses as much as digits as its factorization.

11911314709757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1666980, while the sum is 56.

The spelling of 11911314709757 in words is "eleven trillion, nine hundred eleven billion, three hundred fourteen million, seven hundred nine thousand, seven hundred fifty-seven".