6726899220 has 72 divisors (see below), whose sum is σ = 18912178656. Its totient is φ = 1786542912.

The previous prime is 6726899197. The next prime is 6726899237. The reversal of 6726899220 is 229986276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12861879 + ... + 12862401.

It is an arithmetic number, because the mean of its divisors is an integer number (262669148).

Almost surely, 2^6726899220 is an apocalyptic number.

6726899220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6726899220 is an abundant number, since it is smaller than the sum of its proper divisors (12185279436).

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

6726899220 is a wasteful number, since it uses less digits than its factorization.

6726899220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 6726899220 is about 82017.6762655466. The cubic root of 6726899220 is about 1887.7231730034.

The spelling of 6726899220 in words is "six billion, seven hundred twenty-six million, eight hundred ninety-nine thousand, two hundred twenty".