16479647369 has 4 divisors (see below), whose sum is σ = 16497161220. Its totient is φ = 16462133520.

The previous prime is 16479647281. The next prime is 16479647377. The reversal of 16479647369 is 96374697461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10882662400 + 5596984969 = 104320^2 + 74813^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16479647369 is a prime.

It is a super-2 number, since 2×16479647369² (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 (16479647669) 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, 8755514 + ... + 8757395.

It is an arithmetic number, because the mean of its divisors is an integer number (4124290305).

Almost surely, 2^16479647369 is an apocalyptic number.

It is an amenable number.

16479647369 is a deficient number, since it is larger than the sum of its proper divisors (17513851).

16479647369 is an equidigital number, since it uses as much as digits as its factorization.

16479647369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17513850.

The product of its digits is 41150592, while the sum is 62.

The spelling of 16479647369 in words is "sixteen billion, four hundred seventy-nine million, six hundred forty-seven thousand, three hundred sixty-nine".