11899272732 has 24 divisors (see below), whose sum is σ = 28972142976. Its totient is φ = 3793970928.

The previous prime is 11899272731. The next prime is 11899272769. The reversal of 11899272732 is 23727299811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11899272731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21556378 + ... + 21556929.

It is an arithmetic number, because the mean of its divisors is an integer number (1207172624).

Almost surely, 2^11899272732 is an apocalyptic number.

11899272732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11899272732 is an abundant number, since it is smaller than the sum of its proper divisors (17072870244).

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

11899272732 is a wasteful number, since it uses less digits than its factorization.

11899272732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43113337 (or 43113335 counting only the distinct ones).

The product of its digits is 762048, while the sum is 51.

The spelling of 11899272732 in words is "eleven billion, eight hundred ninety-nine million, two hundred seventy-two thousand, seven hundred thirty-two".