11994849911 has 24 divisors (see below), whose sum is σ = 13289189760. Its totient is φ = 10818118080.

The previous prime is 11994849901. The next prime is 11994849941.

11994849911 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 11994849911 - 2²⁶ = 11927741047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11994849901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14468645 + ... + 14469473.

It is an arithmetic number, because the mean of its divisors is an integer number (553716240).

Almost surely, 2^11994849911 is an apocalyptic number.

11994849911 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11994849911 is a deficient number, since it is larger than the sum of its proper divisors (1294339849).

11994849911 is a wasteful number, since it uses less digits than its factorization.

11994849911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655 (or 1644 counting only the distinct ones).

The product of its digits is 839808, while the sum is 56.

The spelling of 11994849911 in words is "eleven billion, nine hundred ninety-four million, eight hundred forty-nine thousand, nine hundred eleven".