33982389021 has 16 divisors (see below), whose sum is σ = 52285435904. Its totient is φ = 19229977584.

The previous prime is 33982388983. The next prime is 33982389053. The reversal of 33982389021 is 12098328933.

It is a happy number.

It is not a de Polignac number, because 33982389021 - 2⁷ = 33982388893 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33982389061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7853221 + ... + 7857546.

It is an arithmetic number, because the mean of its divisors is an integer number (3267839744).

Almost surely, 2^33982389021 is an apocalyptic number.

It is an amenable number.

33982389021 is a deficient number, since it is larger than the sum of its proper divisors (18303046883).

33982389021 is a wasteful number, since it uses less digits than its factorization.

33982389021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15710880.

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 33982389021 in words is "thirty-three billion, nine hundred eighty-two million, three hundred eighty-nine thousand, twenty-one".