33868442517 has 64 divisors (see below), whose sum is σ = 58050908160. Its totient is φ = 17071617024.

The previous prime is 33868442459. The next prime is 33868442537. The reversal of 33868442517 is 71524486833.

It is a happy number.

It is not a de Polignac number, because 33868442517 - 2⁶ = 33868442453 is a prime.

It is a super-2 number, since 2×33868442517² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33868442517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33868442537) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9159213 + ... + 9162909.

It is an arithmetic number, because the mean of its divisors is an integer number (907045440).

Almost surely, 2^33868442517 is an apocalyptic number.

It is an amenable number.

33868442517 is a deficient number, since it is larger than the sum of its proper divisors (24182465643).

33868442517 is a wasteful number, since it uses less digits than its factorization.

33868442517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5202.

The product of its digits is 3870720, while the sum is 51.

The spelling of 33868442517 in words is "thirty-three billion, eight hundred sixty-eight million, four hundred forty-two thousand, five hundred seventeen".