6845479646 has 32 divisors (see below), whose sum is σ = 10515432960. Its totient is φ = 3341422656.

The previous prime is 6845479633. The next prime is 6845479649. The reversal of 6845479646 is 6469745486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6845479649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9520475 + ... + 9521193.

It is an arithmetic number, because the mean of its divisors is an integer number (328607280).

Almost surely, 2^6845479646 is an apocalyptic number.

6845479646 is a deficient number, since it is larger than the sum of its proper divisors (3669953314).

6845479646 is a wasteful number, since it uses less digits than its factorization.

6845479646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328.

The product of its digits is 34836480, while the sum is 59.

The square root of 6845479646 is about 82737.4138222848. The cubic root of 6845479646 is about 1898.7507620088.

The spelling of 6845479646 in words is "six billion, eight hundred forty-five million, four hundred seventy-nine thousand, six hundred forty-six".