11891881080297 has 64 divisors (see below), whose sum is σ = 18532285931520. Its totient is φ = 7521975964800.

The previous prime is 11891881080293. The next prime is 11891881080307. The reversal of 11891881080297 is 79208018819811.

11891881080297 is a `hidden beast` number, since 1 + 1 + 89 + 188 + 10 + 80 + 297 = 666.

It is not a de Polignac number, because 11891881080297 - 2² = 11891881080293 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11891881080293) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 109780272 + ... + 109888542.

It is an arithmetic number, because the mean of its divisors is an integer number (289566967680).

Almost surely, 2^{11891881080297} is an apocalyptic number.

It is an amenable number.

11891881080297 is a deficient number, since it is larger than the sum of its proper divisors (6640404851223).

11891881080297 is a wasteful number, since it uses less digits than its factorization.

11891881080297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109731 (or 109725 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 63.

The spelling of 11891881080297 in words is "eleven trillion, eight hundred ninety-one billion, eight hundred eighty-one million, eighty thousand, two hundred ninety-seven".