33461880021 has 12 divisors (see below), whose sum is σ = 48394481772. Its totient is φ = 22279925376.

The previous prime is 33461880017. The next prime is 33461880037. The reversal of 33461880021 is 12008816433.

33461880021 is a `hidden beast` number, since 3 + 34 + 618 + 8 + 0 + 0 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26866815921 + 6595064100 = 163911^2 + 81210^2 .

It is not a de Polignac number, because 33461880021 - 2² = 33461880017 is a prime.

It is a super-2 number, since 2×33461880021² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33461880041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2325316 + ... + 2339661.

It is an arithmetic number, because the mean of its divisors is an integer number (4032873481).

Almost surely, 2^33461880021 is an apocalyptic number.

It is an amenable number.

33461880021 is a deficient number, since it is larger than the sum of its proper divisors (14932601751).

33461880021 is a wasteful number, since it uses less digits than its factorization.

33461880021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665780 (or 4665777 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 33461880021 in words is "thirty-three billion, four hundred sixty-one million, eight hundred eighty thousand, twenty-one".