6782221849 has 8 divisors (see below), whose sum is σ = 7348742912. Its totient is φ = 6222102480.

The previous prime is 6782221843. The next prime is 6782221891. The reversal of 6782221849 is 9481222876.

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

It is a cyclic number.

It is not a de Polignac number, because 6782221849 - 2²⁵ = 6748667417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6782221843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1598217 + ... + 1602454.

It is an arithmetic number, because the mean of its divisors is an integer number (918592864).

Almost surely, 2^6782221849 is an apocalyptic number.

It is an amenable number.

6782221849 is a deficient number, since it is larger than the sum of its proper divisors (566521063).

6782221849 is a wasteful number, since it uses less digits than its factorization.

6782221849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200847.

The product of its digits is 774144, while the sum is 49.

The square root of 6782221849 is about 82354.2460896826. The cubic root of 6782221849 is about 1892.8839865883.

The spelling of 6782221849 in words is "six billion, seven hundred eighty-two million, two hundred twenty-one thousand, eight hundred forty-nine".