11884991292 has 36 divisors (see below), whose sum is σ = 30380182560. Its totient is φ = 3917149632.

The previous prime is 11884991267. The next prime is 11884991299. The reversal of 11884991292 is 29219948811.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11884991299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1851508 + ... + 1857915.

It is an arithmetic number, because the mean of its divisors is an integer number (843893960).

Almost surely, 2^11884991292 is an apocalyptic number.

11884991292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11884991292 is an abundant number, since it is smaller than the sum of its proper divisors (18495191268).

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

11884991292 is a wasteful number, since it uses less digits than its factorization.

11884991292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709522 (or 3709517 counting only the distinct ones).

The product of its digits is 746496, while the sum is 54.

The spelling of 11884991292 in words is "eleven billion, eight hundred eighty-four million, nine hundred ninety-one thousand, two hundred ninety-two".