19986802323 has 8 divisors (see below), whose sum is σ = 26653998336. Its totient is φ = 13322070600.

The previous prime is 19986802313. The next prime is 19986802343. The reversal of 19986802323 is 32320868991.

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

It is not a de Polignac number, because 19986802323 - 2²⁰ = 19985753747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19986802313) 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, 597063 + ... + 629648.

It is an arithmetic number, because the mean of its divisors is an integer number (3331749792).

Almost surely, 2^19986802323 is an apocalyptic number.

19986802323 is a deficient number, since it is larger than the sum of its proper divisors (6667196013).

19986802323 is a wasteful number, since it uses less digits than its factorization.

19986802323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232145.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The spelling of 19986802323 in words is "nineteen billion, nine hundred eighty-six million, eight hundred two thousand, three hundred twenty-three".