19481083904 has 120 divisors (see below), whose sum is σ = 43060556448. Its totient is φ = 8766095360.

The previous prime is 19481083901. The next prime is 19481083907. The reversal of 19481083904 is 40938018491.

It is an interprime number because it is at equal distance from previous prime (19481083901) and next prime (19481083907).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19481083901) 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, 6404624 + ... + 6407664.

Almost surely, 2^19481083904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19481083904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21530278224).

19481083904 is an abundant number, since it is smaller than the sum of its proper divisors (23579472544).

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

19481083904 is an equidigital number, since it uses as much as digits as its factorization.

19481083904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109 (or 3083 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 19481083904 in words is "nineteen billion, four hundred eighty-one million, eighty-three thousand, nine hundred four".