7635868686663 has 16 divisors (see below), whose sum is σ = 11673022972416. Its totient is φ = 4349323455840.

The previous prime is 7635868686601. The next prime is 7635868686689. The reversal of 7635868686663 is 3666868685367.

It is not a de Polignac number, because 7635868686663 - 2¹⁸ = 7635868424519 is a prime.

It is a super-3 number, since 3×7635868686663³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7635868686463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 584579956 + ... + 584593017.

It is an arithmetic number, because the mean of its divisors is an integer number (729563935776).

Almost surely, 2^{7635868686663} is an apocalyptic number.

7635868686663 is a deficient number, since it is larger than the sum of its proper divisors (4037154285753).

7635868686663 is a wasteful number, since it uses less digits than its factorization.

7635868686663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169173294.

The product of its digits is 7524679680, while the sum is 78.

The spelling of 7635868686663 in words is "seven trillion, six hundred thirty-five billion, eight hundred sixty-eight million, six hundred eighty-six thousand, six hundred sixty-three".