7745685616 has 40 divisors (see below), whose sum is σ = 16032942080. Its totient is φ = 3614238144.

The previous prime is 7745685611. The next prime is 7745685667. The reversal of 7745685616 is 6165865477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7745685611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169776 + ... + 210511.

It is an arithmetic number, because the mean of its divisors is an integer number (400823552).

Almost surely, 2^7745685616 is an apocalyptic number.

7745685616 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

7745685616 is an abundant number, since it is smaller than the sum of its proper divisors (8287256464).

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

7745685616 is a wasteful number, since it uses less digits than its factorization.

7745685616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380381 (or 380375 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 55.

The square root of 7745685616 is about 88009.5768425232. The cubic root of 7745685616 is about 1978.5785137887.

The spelling of 7745685616 in words is "seven billion, seven hundred forty-five million, six hundred eighty-five thousand, six hundred sixteen".