33491364820 has 12 divisors (see below), whose sum is σ = 70331866164. Its totient is φ = 13396545920.

The previous prime is 33491364799. The next prime is 33491364853. The reversal of 33491364820 is 2846319433.

It can be written as a sum of positive squares in 2 ways, for example, as 26661664656 + 6829700164 = 163284^2 + 82642^2 .

It is a super-2 number, since 2×33491364820² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837284101 + ... + 837284140.

It is an arithmetic number, because the mean of its divisors is an integer number (5860988847).

Almost surely, 2^33491364820 is an apocalyptic number.

It is an amenable number.

33491364820 is an abundant number, since it is smaller than the sum of its proper divisors (36840501344).

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

33491364820 is a wasteful number, since it uses less digits than its factorization.

33491364820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674568250 (or 1674568248 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 33491364820 in words is "thirty-three billion, four hundred ninety-one million, three hundred sixty-four thousand, eight hundred twenty".