33432081738 has 16 divisors (see below), whose sum is σ = 72942723936. Its totient is φ = 10130933840.

The previous prime is 33432081737. The next prime is 33432081743. The reversal of 33432081738 is 83718023433.

It is a super-2 number, since 2×33432081738² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33432081738.

It is not an unprimeable number, because it can be changed into a prime (33432081737) 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 7 ways as a sum of consecutive naturals, for example, 253273281 + ... + 253273412.

It is an arithmetic number, because the mean of its divisors is an integer number (4558920246).

Almost surely, 2^33432081738 is an apocalyptic number.

33432081738 is an abundant number, since it is smaller than the sum of its proper divisors (39510642198).

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

33432081738 is a wasteful number, since it uses less digits than its factorization.

33432081738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506546709.

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 33432081738 in words is "thirty-three billion, four hundred thirty-two million, eighty-one thousand, seven hundred thirty-eight".