7697520720 has 480 divisors, whose sum is σ = 28312187904. Its totient is φ = 1940889600.

The previous prime is 7697520707. The next prime is 7697520793. The reversal of 7697520720 is 270257967.

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 95 ways as a sum of consecutive naturals, for example, 31939800 + ... + 31940040.

Almost surely, 2^7697520720 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 7697520720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14156093952).

7697520720 is an abundant number, since it is smaller than the sum of its proper divisors (20614667184).

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

7697520720 is a wasteful number, since it uses less digits than its factorization.

7697520720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 7697520720 is about 87735.5157276687. The cubic root of 7697520720 is about 1974.4688606445.

The spelling of 7697520720 in words is "seven billion, six hundred ninety-seven million, five hundred twenty thousand, seven hundred twenty".