19922391429 has 8 divisors (see below), whose sum is σ = 26587630080. Its totient is φ = 13269373536.

The previous prime is 19922391427. The next prime is 19922391457. The reversal of 19922391429 is 92419322991.

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

It is not a de Polignac number, because 19922391429 - 2¹ = 19922391427 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19922391421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3051384 + ... + 3057905.

It is an arithmetic number, because the mean of its divisors is an integer number (3323453760).

Almost surely, 2^19922391429 is an apocalyptic number.

It is an amenable number.

19922391429 is a deficient number, since it is larger than the sum of its proper divisors (6665238651).

19922391429 is a wasteful number, since it uses less digits than its factorization.

19922391429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6110379.

The product of its digits is 629856, while the sum is 51.

The spelling of 19922391429 in words is "nineteen billion, nine hundred twenty-two million, three hundred ninety-one thousand, four hundred twenty-nine".