7686577845 has 48 divisors (see below), whose sum is σ = 13453240320. Its totient is φ = 4059683712.

The previous prime is 7686577841. The next prime is 7686577859. The reversal of 7686577845 is 5487756867.

It is not a de Polignac number, because 7686577845 - 2² = 7686577841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7686577841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4496851 + ... + 4498559.

It is an arithmetic number, because the mean of its divisors is an integer number (280275840).

Almost surely, 2^7686577845 is an apocalyptic number.

It is an amenable number.

7686577845 is a deficient number, since it is larger than the sum of its proper divisors (5766662475).

7686577845 is a wasteful number, since it uses less digits than its factorization.

7686577845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634 (or 2631 counting only the distinct ones).

The product of its digits is 79027200, while the sum is 63.

The square root of 7686577845 is about 87673.1306900809. The cubic root of 7686577845 is about 1973.5327751426.

The spelling of 7686577845 in words is "seven billion, six hundred eighty-six million, five hundred seventy-seven thousand, eight hundred forty-five".