11881446585 has 32 divisors (see below), whose sum is σ = 19368713088. Its totient is φ = 6218419200.

The previous prime is 11881446553. The next prime is 11881446607. The reversal of 11881446585 is 58564418811.

It is a happy number.

It is not a de Polignac number, because 11881446585 - 2⁵ = 11881446553 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136494 + ... + 205896.

It is an arithmetic number, because the mean of its divisors is an integer number (605272284).

Almost surely, 2^11881446585 is an apocalyptic number.

11881446585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11881446585 is a deficient number, since it is larger than the sum of its proper divisors (7487266503).

11881446585 is a wasteful number, since it uses less digits than its factorization.

11881446585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69625.

The product of its digits is 1228800, while the sum is 51.

The spelling of 11881446585 in words is "eleven billion, eight hundred eighty-one million, four hundred forty-six thousand, five hundred eighty-five".