19313985799 has 8 divisors (see below), whose sum is σ = 20437581312. Its totient is φ = 18214045080.

The previous prime is 19313985797. The next prime is 19313985809. The reversal of 19313985799 is 99758931391.

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 19313985799 - 2¹ = 19313985797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19313985799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19313985797) 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, 5912019 + ... + 5915284.

It is an arithmetic number, because the mean of its divisors is an integer number (2554697664).

Almost surely, 2^19313985799 is an apocalyptic number.

19313985799 is a deficient number, since it is larger than the sum of its proper divisors (1123595513).

19313985799 is a wasteful number, since it uses less digits than its factorization.

19313985799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11827397.

The product of its digits is 16533720, while the sum is 64.

The spelling of 19313985799 in words is "nineteen billion, three hundred thirteen million, nine hundred eighty-five thousand, seven hundred ninety-nine".