33898308678 has 80 divisors (see below), whose sum is σ = 81840975216. Its totient is φ = 10425049920.

The previous prime is 33898308649. The next prime is 33898308683. The reversal of 33898308678 is 87680389833.

It is a super-2 number, since 2×33898308678² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8428308 + ... + 8432328.

Almost surely, 2^33898308678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33898308678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40920487608).

33898308678 is an abundant number, since it is smaller than the sum of its proper divisors (47942666538).

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

33898308678 is a wasteful number, since it uses less digits than its factorization.

33898308678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8051 (or 8042 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 33898308678 in words is "thirty-three billion, eight hundred ninety-eight million, three hundred eight thousand, six hundred seventy-eight".