6442450945 has 8 divisors (see below), whose sum is σ = 8835361344. Its totient is φ = 4417680624.

The previous prime is 6442450939. The next prime is 6442450967. The reversal of 6442450945 is 5490542446.

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

It is not a de Polignac number, because 6442450945 - 2²³ = 6434062337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92034979 + ... + 92035048.

It is an arithmetic number, because the mean of its divisors is an integer number (1104420168).

It is a Proth number, since it is equal to 3 ⋅ 2³¹ + 1 and 3 < 2³¹.

Almost surely, 2^6442450945 is an apocalyptic number.

It is an amenable number.

6442450945 is a deficient number, since it is larger than the sum of its proper divisors (2392910399).

6442450945 is a wasteful number, since it uses less digits than its factorization.

6442450945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184070039.

The product of its (nonzero) digits is 691200, while the sum is 43.

The square root of 6442450945 is about 80264.8798977486. The cubic root of 6442450945 is about 1860.7314871564.

The spelling of 6442450945 in words is "six billion, four hundred forty-two million, four hundred fifty thousand, nine hundred forty-five".