33686868634 has 8 divisors (see below), whose sum is σ = 53189792640. Its totient is φ = 15956937756.

The previous prime is 33686868623. The next prime is 33686868667. The reversal of 33686868634 is 43686868633.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×33686868634² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443248234 + ... + 443248309.

It is an arithmetic number, because the mean of its divisors is an integer number (6648724080).

Almost surely, 2^33686868634 is an apocalyptic number.

33686868634 is a deficient number, since it is larger than the sum of its proper divisors (19502924006).

33686868634 is a wasteful number, since it uses less digits than its factorization.

33686868634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886496564.

The product of its digits is 71663616, while the sum is 61.

Subtracting 33686868634 from its reverse (43686868633), we obtain a palindrome (9999999999).

The spelling of 33686868634 in words is "thirty-three billion, six hundred eighty-six million, eight hundred sixty-eight thousand, six hundred thirty-four".