19482872720 has 20 divisors (see below), whose sum is σ = 45297679260. Its totient is φ = 7793149056.

The previous prime is 19482872719. The next prime is 19482872737. The reversal of 19482872720 is 2727828491.

It can be written as a sum of positive squares in 2 ways, for example, as 11142069136 + 8340803584 = 105556^2 + 91328^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121767875 + ... + 121768034.

It is an arithmetic number, because the mean of its divisors is an integer number (2264883963).

Almost surely, 2^19482872720 is an apocalyptic number.

19482872720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19482872720 is an abundant number, since it is smaller than the sum of its proper divisors (25814806540).

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

19482872720 is a wasteful number, since it uses less digits than its factorization.

19482872720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243535922 (or 243535916 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 19482872720 in words is "nineteen billion, four hundred eighty-two million, eight hundred seventy-two thousand, seven hundred twenty".