19340123429 has 4 divisors (see below), whose sum is σ = 21098316480. Its totient is φ = 17581930380.

The previous prime is 19340123393. The next prime is 19340123447. The reversal of 19340123429 is 92432104391.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19340123429 - 2²⁴ = 19323346213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19340123392 and 19340123401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19340123329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879096509 + ... + 879096530.

It is an arithmetic number, because the mean of its divisors is an integer number (5274579120).

Almost surely, 2^19340123429 is an apocalyptic number.

It is an amenable number.

19340123429 is a deficient number, since it is larger than the sum of its proper divisors (1758193051).

19340123429 is a wasteful number, since it uses less digits than its factorization.

19340123429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758193050.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 19340123429 in words is "nineteen billion, three hundred forty million, one hundred twenty-three thousand, four hundred twenty-nine".