16697349719 has 4 divisors (see below), whose sum is σ = 16884960480. Its totient is φ = 16509738960.

The previous prime is 16697349707. The next prime is 16697349727. The reversal of 16697349719 is 91794379661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91794379661 = 2897 ⋅31686013.

It is a cyclic number.

It is not a de Polignac number, because 16697349719 - 2¹⁶ = 16697284183 is a prime.

It is a super-2 number, since 2×16697349719² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16697349419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93805247 + ... + 93805424.

It is an arithmetic number, because the mean of its divisors is an integer number (4221240120).

Almost surely, 2^16697349719 is an apocalyptic number.

16697349719 is a deficient number, since it is larger than the sum of its proper divisors (187610761).

16697349719 is an equidigital number, since it uses as much as digits as its factorization.

16697349719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187610760.

The product of its digits is 15431472, while the sum is 62.

The spelling of 16697349719 in words is "sixteen billion, six hundred ninety-seven million, three hundred forty-nine thousand, seven hundred nineteen".