11481511699 has 8 divisors (see below), whose sum is σ = 13476369248. Its totient is φ = 9575314560.

The previous prime is 11481511631. The next prime is 11481511763. The reversal of 11481511699 is 99611518411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-11481511699 is a prime.

It is a super-2 number, since 2×11481511699² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11481511099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22164822 + ... + 22165339.

It is an arithmetic number, because the mean of its divisors is an integer number (1684546156).

Almost surely, 2^11481511699 is an apocalyptic number.

11481511699 is a deficient number, since it is larger than the sum of its proper divisors (1994857549).

11481511699 is an equidigital number, since it uses as much as digits as its factorization.

11481511699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44330205.

The product of its digits is 77760, while the sum is 46.

The spelling of 11481511699 in words is "eleven billion, four hundred eighty-one million, five hundred eleven thousand, six hundred ninety-nine".