16734208889 has 4 divisors (see below), whose sum is σ = 16758426960. Its totient is φ = 16709990820.

The previous prime is 16734208879. The next prime is 16734208987. The reversal of 16734208889 is 98880243761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16734208889 - 2²⁰ = 16733160313 is a prime.

It is a super-2 number, since 2×16734208889² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16734208819) 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, 12107999 + ... + 12109380.

It is an arithmetic number, because the mean of its divisors is an integer number (4189606740).

Almost surely, 2^16734208889 is an apocalyptic number.

It is an amenable number.

16734208889 is a deficient number, since it is larger than the sum of its proper divisors (24218071).

16734208889 is an equidigital number, since it uses as much as digits as its factorization.

16734208889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24218070.

The product of its (nonzero) digits is 4644864, while the sum is 56.

The spelling of 16734208889 in words is "sixteen billion, seven hundred thirty-four million, two hundred eight thousand, eight hundred eighty-nine".