16393686273 has 12 divisors (see below), whose sum is σ = 23700757860. Its totient is φ = 10919437056.

The previous prime is 16393686269. The next prime is 16393686277. The reversal of 16393686273 is 37268639361.

16393686273 is a `hidden beast` number, since 1 + 6 + 3 + 9 + 3 + 6 + 8 + 627 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (16393686269) and next prime (16393686277).

It can be written as a sum of positive squares in 2 ways, for example, as 562258944 + 15831427329 = 23712^2 + 125823^2 .

It is not a de Polignac number, because 16393686273 - 2² = 16393686269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16393686277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 796536 + ... + 816857.

It is an arithmetic number, because the mean of its divisors is an integer number (1975063155).

Almost surely, 2^16393686273 is an apocalyptic number.

It is an amenable number.

16393686273 is a deficient number, since it is larger than the sum of its proper divisors (7307071587).

16393686273 is a wasteful number, since it uses less digits than its factorization.

16393686273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614528 (or 1614525 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The spelling of 16393686273 in words is "sixteen billion, three hundred ninety-three million, six hundred eighty-six thousand, two hundred seventy-three".