11574958991 has 4 divisors (see below), whose sum is σ = 11705014800. Its totient is φ = 11444903184.

The previous prime is 11574958939. The next prime is 11574959003. The reversal of 11574958991 is 19985947511.

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 11574958991 - 2¹⁴ = 11574942607 is a prime.

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 11574958991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11574958891) 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, 65027771 + ... + 65027948.

It is an arithmetic number, because the mean of its divisors is an integer number (2926253700).

Almost surely, 2^11574958991 is an apocalyptic number.

11574958991 is a deficient number, since it is larger than the sum of its proper divisors (130055809).

11574958991 is an equidigital number, since it uses as much as digits as its factorization.

11574958991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130055808.

The product of its digits is 4082400, while the sum is 59.

The spelling of 11574958991 in words is "eleven billion, five hundred seventy-four million, nine hundred fifty-eight thousand, nine hundred ninety-one".