7688351745 has 24 divisors (see below), whose sum is σ = 14110388136. Its totient is φ = 3859250688.

The previous prime is 7688351717. The next prime is 7688351753. The reversal of 7688351745 is 5471538867.

It is a happy number.

7688351745 is a `hidden beast` number, since 7 + 6 + 8 + 83 + 517 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 447703281 + 7240648464 = 21159^2 + 85092^2 .

It is not a de Polignac number, because 7688351745 - 2¹² = 7688347649 is a prime.

It is a super-2 number, since 2×7688351745² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7688351691 and 7688351700.

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, 5024302 + ... + 5025831.

It is an arithmetic number, because the mean of its divisors is an integer number (587932839).

Almost surely, 2^7688351745 is an apocalyptic number.

It is an amenable number.

7688351745 is a deficient number, since it is larger than the sum of its proper divisors (6422036391).

7688351745 is a wasteful number, since it uses less digits than its factorization.

7688351745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050161 (or 10050158 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The square root of 7688351745 is about 87683.2466609215. The cubic root of 7688351745 is about 1973.6845800415.

The spelling of 7688351745 in words is "seven billion, six hundred eighty-eight million, three hundred fifty-one thousand, seven hundred forty-five".