16449397458 has 32 divisors (see below), whose sum is σ = 36651182400. Its totient is φ = 4886822976.

The previous prime is 16449397441. The next prime is 16449397477. The reversal of 16449397458 is 85479394461.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3633768 + ... + 3638291.

It is an arithmetic number, because the mean of its divisors is an integer number (1145349450).

Almost surely, 2^16449397458 is an apocalyptic number.

16449397458 is an abundant number, since it is smaller than the sum of its proper divisors (20201784942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16449397458 is a wasteful number, since it uses less digits than its factorization.

16449397458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7272106.

The product of its digits is 26127360, while the sum is 60.

The spelling of 16449397458 in words is "sixteen billion, four hundred forty-nine million, three hundred ninety-seven thousand, four hundred fifty-eight".