7688456845 has 8 divisors (see below), whose sum is σ = 9226742040. Its totient is φ = 6150369600.

The previous prime is 7688456827. The next prime is 7688456879. The reversal of 7688456845 is 5486548867.

7688456845 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 982320964 + 6706135881 = 31342^2 + 81891^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7688456845 - 2⁹ = 7688456333 is a prime.

It is a super-2 number, since 2×7688456845² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56671 + ... + 136339.

It is an arithmetic number, because the mean of its divisors is an integer number (1153342755).

Almost surely, 2^7688456845 is an apocalyptic number.

It is an amenable number.

7688456845 is a deficient number, since it is larger than the sum of its proper divisors (1538285195).

7688456845 is a wasteful number, since it uses less digits than its factorization.

7688456845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98975.

The product of its digits is 51609600, while the sum is 61.

The square root of 7688456845 is about 87683.8459751852. The cubic root of 7688456845 is about 1973.6935734431.

The spelling of 7688456845 in words is "seven billion, six hundred eighty-eight million, four hundred fifty-six thousand, eight hundred forty-five".