6220773821 has 8 divisors (see below), whose sum is σ = 6497240064. Its totient is φ = 5944807440.

The previous prime is 6220773803. The next prime is 6220773827. The reversal of 6220773821 is 1283770226.

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 6220773821 - 2¹⁴ = 6220757437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6220773827) 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, 99410 + ... + 149411.

It is an arithmetic number, because the mean of its divisors is an integer number (812155008).

Almost surely, 2^6220773821 is an apocalyptic number.

It is an amenable number.

6220773821 is a deficient number, since it is larger than the sum of its proper divisors (276466243).

6220773821 is a wasteful number, since it uses less digits than its factorization.

6220773821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249931.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 6220773821 is about 78871.8823219023. The cubic root of 6220773821 is about 1839.1400578522.

The spelling of 6220773821 in words is "six billion, two hundred twenty million, seven hundred seventy-three thousand, eight hundred twenty-one".