33280375764 has 12 divisors (see below), whose sum is σ = 77654210144. Its totient is φ = 11093458584.

The previous prime is 33280375697. The next prime is 33280375801. The reversal of 33280375764 is 46757308233.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×33280375764² (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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1386682312 + ... + 1386682335.

Almost surely, 2^33280375764 is an apocalyptic number.

It is an amenable number.

33280375764 is an abundant number, since it is smaller than the sum of its proper divisors (44373834380).

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

33280375764 is a wasteful number, since it uses less digits than its factorization.

33280375764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773364654 (or 2773364652 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 48.

The spelling of 33280375764 in words is "thirty-three billion, two hundred eighty million, three hundred seventy-five thousand, seven hundred sixty-four".