6447260518 has 32 divisors (see below), whose sum is σ = 9918249120. Its totient is φ = 3142245120.

The previous prime is 6447260509. The next prime is 6447260527. The reversal of 6447260518 is 8150627446.

It is an interprime number because it is at equal distance from previous prime (6447260509) and next prime (6447260527).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11574696 + ... + 11575252.

It is an arithmetic number, because the mean of its divisors is an integer number (309945285).

Almost surely, 2^6447260518 is an apocalyptic number.

6447260518 is a deficient number, since it is larger than the sum of its proper divisors (3470988602).

6447260518 is a wasteful number, since it uses less digits than its factorization.

6447260518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 6447260518 is about 80294.8349397394. The cubic root of 6447260518 is about 1861.1944112774.

The spelling of 6447260518 in words is "six billion, four hundred forty-seven million, two hundred sixty thousand, five hundred eighteen".