19429145837 has 8 divisors (see below), whose sum is σ = 20458567200. Its totient is φ = 18400407984.

The previous prime is 19429145737. The next prime is 19429145839. The reversal of 19429145837 is 73854192491.

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

It is a cyclic number.

It is not a de Polignac number, because 19429145837 - 2⁸ = 19429145581 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 (19429145839) 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, 111998 + ... + 226719.

It is an arithmetic number, because the mean of its divisors is an integer number (2557320900).

Almost surely, 2^19429145837 is an apocalyptic number.

It is an amenable number.

19429145837 is a deficient number, since it is larger than the sum of its proper divisors (1029421363).

19429145837 is a wasteful number, since it uses less digits than its factorization.

19429145837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341755.

The product of its digits is 2177280, while the sum is 53.

The spelling of 19429145837 in words is "nineteen billion, four hundred twenty-nine million, one hundred forty-five thousand, eight hundred thirty-seven".