6221726490 has 192 divisors, whose sum is σ = 18095422464. Its totient is φ = 1363848192.

The previous prime is 6221726479. The next prime is 6221726503. The reversal of 6221726490 is 946271226.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3969687 + ... + 3971253.

It is an arithmetic number, because the mean of its divisors is an integer number (94246992).

Almost surely, 2^6221726490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6221726490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9047711232).

6221726490 is an abundant number, since it is smaller than the sum of its proper divisors (11873695974).

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

6221726490 is a wasteful number, since it uses less digits than its factorization.

6221726490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701 (or 1694 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 6221726490 is about 78877.9214355957. The cubic root of 6221726490 is about 1839.2339369706.

The spelling of 6221726490 in words is "six billion, two hundred twenty-one million, seven hundred twenty-six thousand, four hundred ninety".