19350025000 has 48 divisors (see below), whose sum is σ = 45348777180. Its totient is φ = 7740000000.

The previous prime is 19350024919. The next prime is 19350025033. The reversal of 19350025000 is 52005391.

It can be written as a sum of positive squares in 6 ways, for example, as 7572132324 + 11777892676 = 87018^2 + 108526^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 362001 + ... + 412000.

Almost surely, 2^19350025000 is an apocalyptic number.

19350025000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19350025000 is an abundant number, since it is smaller than the sum of its proper divisors (25998752180).

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

19350025000 is an frugal number, since it uses more digits than its factorization.

19350025000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774032 (or 774008 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 25.

The spelling of 19350025000 in words is "nineteen billion, three hundred fifty million, twenty-five thousand".