19958045059 has 4 divisors (see below), whose sum is σ = 20110396680. Its totient is φ = 19805693440.

The previous prime is 19958044987. The next prime is 19958045071. The reversal of 19958045059 is 95054085991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19958045059 - 2¹⁹ = 19957520771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19958015059) 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 3 ways as a sum of consecutive naturals, for example, 76175614 + ... + 76175875.

It is an arithmetic number, because the mean of its divisors is an integer number (5027599170).

Almost surely, 2^19958045059 is an apocalyptic number.

19958045059 is a deficient number, since it is larger than the sum of its proper divisors (152351621).

19958045059 is a wasteful number, since it uses less digits than its factorization.

19958045059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152351620.

The product of its (nonzero) digits is 2916000, while the sum is 55.

The spelling of 19958045059 in words is "nineteen billion, nine hundred fifty-eight million, forty-five thousand, fifty-nine".