6447245673 has 16 divisors (see below), whose sum is σ = 9386366976. Its totient is φ = 3903857040.

The previous prime is 6447245647. The next prime is 6447245681. The reversal of 6447245673 is 3765427446.

It is not a de Polignac number, because 6447245673 - 2⁸ = 6447245417 is a prime.

It is a super-3 number, since 3×6447245673³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6447245603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52165 + ... + 124962.

It is an arithmetic number, because the mean of its divisors is an integer number (586647936).

Almost surely, 2^6447245673 is an apocalyptic number.

It is an amenable number.

6447245673 is a deficient number, since it is larger than the sum of its proper divisors (2939121303).

6447245673 is a wasteful number, since it uses less digits than its factorization.

6447245673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178244.

The product of its digits is 3386880, while the sum is 48.

The square root of 6447245673 is about 80294.7424991201. The cubic root of 6447245673 is about 1861.1929827920.

The spelling of 6447245673 in words is "six billion, four hundred forty-seven million, two hundred forty-five thousand, six hundred seventy-three".