33990823536 has 80 divisors (see below), whose sum is σ = 93844065024. Its totient is φ = 10564099072.

The previous prime is 33990823523. The next prime is 33990823543. The reversal of 33990823536 is 63532809933.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107340 + ... + 281963.

Almost surely, 2^33990823536 is an apocalyptic number.

It is an amenable number.

33990823536 is an abundant number, since it is smaller than the sum of its proper divisors (59853241488).

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

33990823536 is a wasteful number, since it uses less digits than its factorization.

33990823536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389438 (or 389432 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 51.

The spelling of 33990823536 in words is "thirty-three billion, nine hundred ninety million, eight hundred twenty-three thousand, five hundred thirty-six".