19091830000 has 50 divisors (see below), whose sum is σ = 46223253824. Its totient is φ = 7636728000.

The previous prime is 19091829997. The next prime is 19091830033. The reversal of 19091830000 is 3819091.

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 944592 + ... + 964591.

Almost surely, 2^19091830000 is an apocalyptic number.

19091830000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19091830000 is an abundant number, since it is smaller than the sum of its proper divisors (27131423824).

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

19091830000 is an equidigital number, since it uses as much as digits as its factorization.

19091830000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909211 (or 1909190 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 31.

The spelling of 19091830000 in words is "nineteen billion, ninety-one million, eight hundred thirty thousand".