11381985276 has 24 divisors (see below), whose sum is σ = 27175593984. Its totient is φ = 3705762480.

The previous prime is 11381985211. The next prime is 11381985301. The reversal of 11381985276 is 67258918311.

It is a congruent number.

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, 11028540 + ... + 11029571.

It is an arithmetic number, because the mean of its divisors is an integer number (1132316416).

Almost surely, 2^11381985276 is an apocalyptic number.

It is an amenable number.

11381985276 is an abundant number, since it is smaller than the sum of its proper divisors (15793608708).

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

11381985276 is a wasteful number, since it uses less digits than its factorization.

11381985276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22058161 (or 22058159 counting only the distinct ones).

The product of its digits is 725760, while the sum is 51.

The spelling of 11381985276 in words is "eleven billion, three hundred eighty-one million, nine hundred eighty-five thousand, two hundred seventy-six".