33686868632 has 32 divisors (see below), whose sum is σ = 63781739280. Its totient is φ = 16679184000.

The previous prime is 33686868623. The next prime is 33686868667. The reversal of 33686868632 is 23686868633.

It is a happy number.

It is a super-2 number, since 2×33686868632² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298898 + ... + 395870.

Almost surely, 2^33686868632 is an apocalyptic number.

It is an amenable number.

33686868632 is a deficient number, since it is larger than the sum of its proper divisors (30094870648).

33686868632 is a wasteful number, since it uses less digits than its factorization.

33686868632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97403 (or 97399 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 59.

Subtracting from 33686868632 its reverse (23686868633), we obtain a palindrome (9999999999).

The spelling of 33686868632 in words is "thirty-three billion, six hundred eighty-six million, eight hundred sixty-eight thousand, six hundred thirty-two".