4493451816 has 96 divisors (see below), whose sum is σ = 14640350400. Its totient is φ = 1216270080.

The previous prime is 4493451761. The next prime is 4493451817. The reversal of 4493451816 is 6181543944.

4493451816 is a `hidden beast` number, since 44 + 93 + 4 + 518 + 1 + 6 = 666.

It is a super-2 number, since 2×4493451816² = 40382218445427395712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4493451817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 225045 + ... + 244196.

It is an arithmetic number, because the mean of its divisors is an integer number (152503650).

Almost surely, 2^4493451816 is an apocalyptic number.

It is an amenable number.

4493451816 is an abundant number, since it is smaller than the sum of its proper divisors (10146898584).

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

4493451816 is a wasteful number, since it uses less digits than its factorization.

4493451816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469279 (or 469272 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 4493451816 is about 67033.2142747161. The cubic root of 4493451816 is about 1650.1624346973.

The spelling of 4493451816 in words is "four billion, four hundred ninety-three million, four hundred fifty-one thousand, eight hundred sixteen".