19697117912339 has 6 divisors (see below), whose sum is σ = 22912973898084. Its totient is φ = 16883243924820.

The previous prime is 19697117912321. The next prime is 19697117912359. The reversal of 19697117912339 is 93321971179691.

It is not a de Polignac number, because 19697117912339 - 2³² = 19692822945043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19697117912309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200990999057 + ... + 200990999154.

It is an arithmetic number, because the mean of its divisors is an integer number (3818828983014).

Almost surely, 2^{19697117912339} is an apocalyptic number.

19697117912339 is a deficient number, since it is larger than the sum of its proper divisors (3215855985745).

19697117912339 is an equidigital number, since it uses as much as digits as its factorization.

19697117912339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401981998225 (or 401981998218 counting only the distinct ones).

The product of its digits is 34720812, while the sum is 68.

The spelling of 19697117912339 in words is "nineteen trillion, six hundred ninety-seven billion, one hundred seventeen million, nine hundred twelve thousand, three hundred thirty-nine".