673220286449 has 8 divisors (see below), whose sum is σ = 691524674880. Its totient is φ = 654921647856.

The previous prime is 673220286439. The next prime is 673220286463. The reversal of 673220286449 is 944682022376.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 673220286449 - 2¹⁶ = 673220220913 is a prime.

It is a super-2 number, since 2×673220286449² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 673220286449.

It is not an unprimeable number, because it can be changed into a prime (673220286419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1199579 + ... + 1668960.

It is an arithmetic number, because the mean of its divisors is an integer number (86440584360).

Almost surely, 2^673220286449 is an apocalyptic number.

It is an amenable number.

673220286449 is a deficient number, since it is larger than the sum of its proper divisors (18304388431).

673220286449 is a wasteful number, since it uses less digits than its factorization.

673220286449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874919.

The product of its (nonzero) digits is 6967296, while the sum is 53.

The spelling of 673220286449 in words is "six hundred seventy-three billion, two hundred twenty million, two hundred eighty-six thousand, four hundred forty-nine".