33539840806420 has 48 divisors (see below), whose sum is σ = 75854180078208. Its totient is φ = 12383526510720.

The previous prime is 33539840806411. The next prime is 33539840806427. The reversal of 33539840806420 is 2460804893533.

It is a super-2 number, since 2×33539840806420² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33539840806427) by changing a digit.

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, 5673547 + ... + 9963373.

It is an arithmetic number, because the mean of its divisors is an integer number (1580295418296).

Almost surely, 2^{33539840806420} is an apocalyptic number.

It is an amenable number.

33539840806420 is an abundant number, since it is smaller than the sum of its proper divisors (42314339271788).

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

33539840806420 is a wasteful number, since it uses less digits than its factorization.

33539840806420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4319920 (or 4319918 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 55.

The spelling of 33539840806420 in words is "thirty-three trillion, five hundred thirty-nine billion, eight hundred forty million, eight hundred six thousand, four hundred twenty".