11199756479 has 32 divisors (see below), whose sum is σ = 11959073280. Its totient is φ = 10476748800.

The previous prime is 11199756467. The next prime is 11199756481. The reversal of 11199756479 is 97465799111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11199756479 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11199756419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17471999 + ... + 17472639.

It is an arithmetic number, because the mean of its divisors is an integer number (373721040).

Almost surely, 2^11199756479 is an apocalyptic number.

11199756479 is a deficient number, since it is larger than the sum of its proper divisors (759316801).

11199756479 is an equidigital number, since it uses as much as digits as its factorization.

11199756479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911.

The product of its digits is 4286520, while the sum is 59.

The spelling of 11199756479 in words is "eleven billion, one hundred ninety-nine million, seven hundred fifty-six thousand, four hundred seventy-nine".