7722706680 has 192 divisors, whose sum is σ = 27279252000. Its totient is φ = 1883409408.

The previous prime is 7722706669. The next prime is 7722706709. The reversal of 7722706680 is 866072277.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 502551 + ... + 517689.

Almost surely, 2^7722706680 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 7722706680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13639626000).

7722706680 is an abundant number, since it is smaller than the sum of its proper divisors (19556545320).

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

7722706680 is a wasteful number, since it uses less digits than its factorization.

7722706680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15278 (or 15271 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 7722706680 is about 87878.9319461724. The cubic root of 7722706680 is about 1976.6199755721.

The spelling of 7722706680 in words is "seven billion, seven hundred twenty-two million, seven hundred six thousand, six hundred eighty".