19841132320 has 48 divisors (see below), whose sum is σ = 46914614208. Its totient is φ = 7929690880.

The previous prime is 19841132249. The next prime is 19841132329. The reversal of 19841132320 is 2323114891.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (19841132329) 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, 137685 + ... + 242155.

It is an arithmetic number, because the mean of its divisors is an integer number (977387796).

Almost surely, 2^19841132320 is an apocalyptic number.

19841132320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19841132320 is an abundant number, since it is smaller than the sum of its proper divisors (27073481888).

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

19841132320 is a wasteful number, since it uses less digits than its factorization.

19841132320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105673 (or 105665 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 19841132320 in words is "nineteen billion, eight hundred forty-one million, one hundred thirty-two thousand, three hundred twenty".