19490589120 has 224 divisors, whose sum is σ = 67387622400. Its totient is φ = 4754018304.

The previous prime is 19490589109. The next prime is 19490589133. The reversal of 19490589120 is 2198509491.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 19490589120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 510537 + ... + 547383.

It is an arithmetic number, because the mean of its divisors is an integer number (300837600).

Almost surely, 2^19490589120 is an apocalyptic number.

19490589120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19490589120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33693811200).

19490589120 is an abundant number, since it is smaller than the sum of its proper divisors (47897033280).

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

19490589120 is a wasteful number, since it uses less digits than its factorization.

19490589120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36915 (or 36905 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 48.

The spelling of 19490589120 in words is "nineteen billion, four hundred ninety million, five hundred eighty-nine thousand, one hundred twenty".