6722845622890 has 8 divisors (see below), whose sum is σ = 12101122121220. Its totient is φ = 2689138249152.

The previous prime is 6722845622833. The next prime is 6722845623001. The reversal of 6722845622890 is 982265482276.

It can be written as a sum of positive squares in 2 ways, for example, as 6624482473249 + 98363149641 = 2573807^2 + 313629^2 .

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

It is a super-2 number, since 2×6722845622890² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336142281135 + ... + 336142281154.

Almost surely, 2^{6722845622890} is an apocalyptic number.

6722845622890 is a deficient number, since it is larger than the sum of its proper divisors (5378276498330).

6722845622890 is a wasteful number, since it uses less digits than its factorization.

6722845622890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672284562296.

The product of its (nonzero) digits is 46448640, while the sum is 61.

The spelling of 6722845622890 in words is "six trillion, seven hundred twenty-two billion, eight hundred forty-five million, six hundred twenty-two thousand, eight hundred ninety".