19010789900 has 36 divisors (see below), whose sum is σ = 41320193880. Its totient is φ = 7592006400.

The previous prime is 19010789887. The next prime is 19010789951. The reversal of 19010789900 is 998701091.

It is a super-2 number, since 2×19010789900² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91661 + ... + 215460.

Almost surely, 2^19010789900 is an apocalyptic number.

19010789900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19010789900 is an abundant number, since it is smaller than the sum of its proper divisors (22309403980).

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

19010789900 is a wasteful number, since it uses less digits than its factorization.

19010789900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307754 (or 307747 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 44.

The spelling of 19010789900 in words is "nineteen billion, ten million, seven hundred eighty-nine thousand, nine hundred".