717228667220 has 96 divisors (see below), whose sum is σ = 1685031806976. Its totient is φ = 254647411200.

The previous prime is 717228667219. The next prime is 717228667273. The reversal of 717228667220 is 22766822717.

It is a super-2 number, since 2×717228667220² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 982025 + ... + 1548815.

It is an arithmetic number, because the mean of its divisors is an integer number (17552414656).

Almost surely, 2^717228667220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 717228667220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842515903488).

717228667220 is an abundant number, since it is smaller than the sum of its proper divisors (967803139756).

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

717228667220 is a wasteful number, since it uses less digits than its factorization.

717228667220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567001 (or 566999 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 50.

The spelling of 717228667220 in words is "seven hundred seventeen billion, two hundred twenty-eight million, six hundred sixty-seven thousand, two hundred twenty".