33868978605 has 192 divisors, whose sum is σ = 77168332800. Its totient is φ = 13935680640.

The previous prime is 33868978579. The next prime is 33868978657. The reversal of 33868978605 is 50687986833.

It is not a de Polignac number, because 33868978605 - 2⁶ = 33868978541 is a prime.

It is a super-2 number, since 2×33868978605² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 7492536 + ... + 7497054.

It is an arithmetic number, because the mean of its divisors is an integer number (401918400).

Almost surely, 2^33868978605 is an apocalyptic number.

33868978605 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33868978605 is an abundant number, since it is smaller than the sum of its proper divisors (43299354195).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33868978605 is a wasteful number, since it uses less digits than its factorization.

33868978605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4661 (or 4648 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 33868978605 in words is "thirty-three billion, eight hundred sixty-eight million, nine hundred seventy-eight thousand, six hundred five".