19701323399 has 8 divisors (see below), whose sum is σ = 20075789952. Its totient is φ = 19326958560.

The previous prime is 19701323393. The next prime is 19701323441. The reversal of 19701323399 is 99332310791.

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 19701323399 - 2²⁰ = 19700274823 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 (19701323393) 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, 448769 + ... + 490709.

It is an arithmetic number, because the mean of its divisors is an integer number (2509473744).

Almost surely, 2^19701323399 is an apocalyptic number.

19701323399 is a deficient number, since it is larger than the sum of its proper divisors (374466553).

19701323399 is an equidigital number, since it uses as much as digits as its factorization.

19701323399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50857.

The product of its (nonzero) digits is 275562, while the sum is 47.

The spelling of 19701323399 in words is "nineteen billion, seven hundred one million, three hundred twenty-three thousand, three hundred ninety-nine".