19958039045 has 8 divisors (see below), whose sum is σ = 27371025024. Its totient is φ = 13685512464.

The previous prime is 19958039009. The next prime is 19958039053. The reversal of 19958039045 is 54093085991.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19958039045 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285114809 + ... + 285114878.

It is an arithmetic number, because the mean of its divisors is an integer number (3421378128).

Almost surely, 2^19958039045 is an apocalyptic number.

It is an amenable number.

19958039045 is a deficient number, since it is larger than the sum of its proper divisors (7412985979).

19958039045 is an equidigital number, since it uses as much as digits as its factorization.

19958039045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570229699.

The product of its (nonzero) digits is 1749600, while the sum is 53.

The spelling of 19958039045 in words is "nineteen billion, nine hundred fifty-eight million, thirty-nine thousand, forty-five".