6447197706 has 8 divisors (see below), whose sum is σ = 12894395424. Its totient is φ = 2149065900.

The previous prime is 6447197681. The next prime is 6447197707. The reversal of 6447197706 is 6077917446.

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

6447197706 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (6447197707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537266470 + ... + 537266481.

It is an arithmetic number, because the mean of its divisors is an integer number (1611799428).

Almost surely, 2^6447197706 is an apocalyptic number.

6447197706 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6447197706 is a wasteful number, since it uses less digits than its factorization.

6447197706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074532956.

The product of its (nonzero) digits is 1778112, while the sum is 51.

The square root of 6447197706 is about 80294.4438052846. The cubic root of 6447197706 is about 1861.1883670708.

The spelling of 6447197706 in words is "six billion, four hundred forty-seven million, one hundred ninety-seven thousand, seven hundred six".