16323679449 has 48 divisors (see below), whose sum is σ = 29546225280. Its totient is φ = 8436718080.

The previous prime is 16323679423. The next prime is 16323679451. The reversal of 16323679449 is 94497632361.

It is a happy number.

16323679449 is a `hidden beast` number, since 163 + 2 + 36 + 7 + 9 + 449 = 666.

It is not a de Polignac number, because 16323679449 - 2⁷ = 16323679321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16323679395 and 16323679404.

It is not an unprimeable number, because it can be changed into a prime (16323679549) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76737 + ... + 196305.

It is an arithmetic number, because the mean of its divisors is an integer number (615546360).

Almost surely, 2^16323679449 is an apocalyptic number.

It is an amenable number.

16323679449 is a deficient number, since it is larger than the sum of its proper divisors (13222545831).

16323679449 is a wasteful number, since it uses less digits than its factorization.

16323679449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119790 (or 119787 counting only the distinct ones).

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

The spelling of 16323679449 in words is "sixteen billion, three hundred twenty-three million, six hundred seventy-nine thousand, four hundred forty-nine".