7645806688 has 96 divisors (see below), whose sum is σ = 16711881984. Its totient is φ = 3420444672.

The previous prime is 7645806683. The next prime is 7645806689. The reversal of 7645806688 is 8866085467.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7645806683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4878481 + ... + 4880047.

It is an arithmetic number, because the mean of its divisors is an integer number (174082104).

Almost surely, 2^7645806688 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 7645806688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8355940992).

7645806688 is an abundant number, since it is smaller than the sum of its proper divisors (9066075296).

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

7645806688 is a wasteful number, since it uses less digits than its factorization.

7645806688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944 (or 1936 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 58.

The square root of 7645806688 is about 87440.3035676341. The cubic root of 7645806688 is about 1970.0372490745.

The spelling of 7645806688 in words is "seven billion, six hundred forty-five million, eight hundred six thousand, six hundred eighty-eight".