7721364288 has 168 divisors, whose sum is σ = 22640966656. Its totient is φ = 2320496640.

The previous prime is 7721364269. The next prime is 7721364337. The reversal of 7721364288 is 8824631277.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 2949156 + ... + 2951772.

Almost surely, 2^7721364288 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 7721364288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11320483328).

7721364288 is an abundant number, since it is smaller than the sum of its proper divisors (14919602368).

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

7721364288 is a wasteful number, since it uses less digits than its factorization.

7721364288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781 (or 2760 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The square root of 7721364288 is about 87871.2938791731. The cubic root of 7721364288 is about 1976.5054409187.

The spelling of 7721364288 in words is "seven billion, seven hundred twenty-one million, three hundred sixty-four thousand, two hundred eighty-eight".