7688485785 has 32 divisors (see below), whose sum is σ = 12596082048. Its totient is φ = 4002485760.

The previous prime is 7688485751. The next prime is 7688485787. The reversal of 7688485785 is 5875848867.

It is not a de Polignac number, because 7688485785 - 2⁷ = 7688485657 is a prime.

It is a super-2 number, since 2×7688485785² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7688485787) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1282495 + ... + 1288475.

It is an arithmetic number, because the mean of its divisors is an integer number (393627564).

Almost surely, 2^7688485785 is an apocalyptic number.

It is an amenable number.

7688485785 is a deficient number, since it is larger than the sum of its proper divisors (4907596263).

7688485785 is a wasteful number, since it uses less digits than its factorization.

7688485785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8025.

The product of its digits is 120422400, while the sum is 66.

The square root of 7688485785 is about 87684.0109997256. The cubic root of 7688485785 is about 1973.6960498230.

The spelling of 7688485785 in words is "seven billion, six hundred eighty-eight million, four hundred eighty-five thousand, seven hundred eighty-five".