11491088644 has 24 divisors (see below), whose sum is σ = 23774667840. Its totient is φ = 4754932896.

The previous prime is 11491088621. The next prime is 11491088669. The reversal of 11491088644 is 44688019411.

It is a junction number, because it is equal to n+sod(n) for n = 11491088594 and 11491088603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7074982 + ... + 7076605.

It is an arithmetic number, because the mean of its divisors is an integer number (990611160).

Almost surely, 2^11491088644 is an apocalyptic number.

11491088644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11491088644 is an abundant number, since it is smaller than the sum of its proper divisors (12283579196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11491088644 is a wasteful number, since it uses less digits than its factorization.

11491088644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14151627 (or 14151625 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The spelling of 11491088644 in words is "eleven billion, four hundred ninety-one million, eighty-eight thousand, six hundred forty-four".