7668526636 has 12 divisors (see below), whose sum is σ = 13453727728. Its totient is φ = 3824604432.

The previous prime is 7668526633. The next prime is 7668526661. The reversal of 7668526636 is 6366258667.

It is a happy number.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7668526633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2412936 + ... + 2416111.

Almost surely, 2^7668526636 is an apocalyptic number.

It is an amenable number.

7668526636 is a deficient number, since it is larger than the sum of its proper divisors (5785201092).

7668526636 is a wasteful number, since it uses less digits than its factorization.

7668526636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4829448 (or 4829446 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 55.

The square root of 7668526636 is about 87570.1241063412. The cubic root of 7668526636 is about 1971.9866785221.

The spelling of 7668526636 in words is "seven billion, six hundred sixty-eight million, five hundred twenty-six thousand, six hundred thirty-six".