6647873970 has 64 divisors (see below), whose sum is σ = 17179827840. Its totient is φ = 1640199168.

The previous prime is 6647873963. The next prime is 6647873971. The reversal of 6647873970 is 793787466.

It is a self number, because there is not a number n which added to its sum of digits gives 6647873970.

It is not an unprimeable number, because it can be changed into a prime (6647873971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80377 + ... + 140556.

It is an arithmetic number, because the mean of its divisors is an integer number (268434810).

Almost surely, 2^6647873970 is an apocalyptic number.

6647873970 is an abundant number, since it is smaller than the sum of its proper divisors (10531953870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6647873970 is a wasteful number, since it uses less digits than its factorization.

6647873970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221019.

The product of its (nonzero) digits is 10668672, while the sum is 57.

The square root of 6647873970 is about 81534.4955831579. The cubic root of 6647873970 is about 1880.3019329835.

The spelling of 6647873970 in words is "six billion, six hundred forty-seven million, eight hundred seventy-three thousand, nine hundred seventy".