19992089343 has 8 divisors (see below), whose sum is σ = 27376554928. Its totient is φ = 12967841664.

The previous prime is 19992089329. The next prime is 19992089353. The reversal of 19992089343 is 34398029991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19992089343 - 2⁸ = 19992089087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19992089353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90054346 + ... + 90054567.

It is an arithmetic number, because the mean of its divisors is an integer number (3422069366).

Almost surely, 2^19992089343 is an apocalyptic number.

19992089343 is a deficient number, since it is larger than the sum of its proper divisors (7384465585).

19992089343 is a wasteful number, since it uses less digits than its factorization.

19992089343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180108953.

The product of its (nonzero) digits is 3779136, while the sum is 57.

The spelling of 19992089343 in words is "nineteen billion, nine hundred ninety-two million, eighty-nine thousand, three hundred forty-three".