16197412489 has 4 divisors (see below), whose sum is σ = 16197756624. Its totient is φ = 16197068356.

The previous prime is 16197412463. The next prime is 16197412501. The reversal of 16197412489 is 98421479161.

16197412489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16197412489 - 2⁵ = 16197412457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16197416489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87667 + ... + 200200.

It is an arithmetic number, because the mean of its divisors is an integer number (4049439156).

Almost surely, 2^16197412489 is an apocalyptic number.

It is an amenable number.

16197412489 is a deficient number, since it is larger than the sum of its proper divisors (344135).

16197412489 is an equidigital number, since it uses as much as digits as its factorization.

16197412489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344134.

The product of its digits is 870912, while the sum is 52.

The spelling of 16197412489 in words is "sixteen billion, one hundred ninety-seven million, four hundred twelve thousand, four hundred eighty-nine".