11771174864989 has 4 divisors (see below), whose sum is σ = 11771238862656. Its totient is φ = 11771110867324.

The previous prime is 11771174864957. The next prime is 11771174864993. The reversal of 11771174864989 is 98946847117711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11771174864989 - 2⁵ = 11771174864957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11771174864489) 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, 31722139 + ... + 32091064.

It is an arithmetic number, because the mean of its divisors is an integer number (2942809715664).

Almost surely, 2^{11771174864989} is an apocalyptic number.

It is an amenable number.

11771174864989 is a deficient number, since it is larger than the sum of its proper divisors (63997667).

11771174864989 is an equidigital number, since it uses as much as digits as its factorization.

11771174864989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63997666.

The product of its digits is 170698752, while the sum is 73.

The spelling of 11771174864989 in words is "eleven trillion, seven hundred seventy-one billion, one hundred seventy-four million, eight hundred sixty-four thousand, nine hundred eighty-nine".