11527271737691 has 4 divisors (see below), whose sum is σ = 11716243405584. Its totient is φ = 11338300069800.

The previous prime is 11527271737687. The next prime is 11527271737759. The reversal of 11527271737691 is 19673717272511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11527271737691 - 2² = 11527271737687 is a prime.

It is a super-2 number, since 2×11527271737691² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11527271737691.

It is not an unprimeable number, because it can be changed into a prime (11527271737991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94485833855 + ... + 94485833976.

It is an arithmetic number, because the mean of its divisors is an integer number (2929060851396).

Almost surely, 2^{11527271737691} is an apocalyptic number.

11527271737691 is a deficient number, since it is larger than the sum of its proper divisors (188971667893).

11527271737691 is an equidigital number, since it uses as much as digits as its factorization.

11527271737691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188971667892.

The product of its digits is 7779240, while the sum is 59.

The spelling of 11527271737691 in words is "eleven trillion, five hundred twenty-seven billion, two hundred seventy-one million, seven hundred thirty-seven thousand, six hundred ninety-one".