19089290896 has 45 divisors (see below), whose sum is σ = 40064467611. Its totient is φ = 8807126016.

The previous prime is 19089290893. The next prime is 19089290911. The reversal of 19089290896 is 69809298091.

The square root of 19089290896 is 138164.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1047428496 + 18041862400 = 32364^2 + 134320^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19089290893) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7183200 + ... + 7185856.

Almost surely, 2^19089290896 is an apocalyptic number.

19089290896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

19089290896 is the 138164-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19089290896

19089290896 is an abundant number, since it is smaller than the sum of its proper divisors (20975176715).

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

19089290896 is an frugal number, since it uses more digits than its factorization.

19089290896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5348 (or 2672 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 61.

The spelling of 19089290896 in words is "nineteen billion, eighty-nine million, two hundred ninety thousand, eight hundred ninety-six".