33904297081 has 32 divisors (see below), whose sum is σ = 35797966848. Its totient is φ = 32084028480.

The previous prime is 33904297013. The next prime is 33904297087. The reversal of 33904297081 is 18079240933.

It is a de Polignac number, because none of the positive numbers 2^k-33904297081 is a prime.

It is a super-2 number, since 2×33904297081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33904297087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46253791 + ... + 46254523.

It is an arithmetic number, because the mean of its divisors is an integer number (1118686464).

Almost surely, 2^33904297081 is an apocalyptic number.

It is an amenable number.

33904297081 is a deficient number, since it is larger than the sum of its proper divisors (1893669767).

33904297081 is a wasteful number, since it uses less digits than its factorization.

33904297081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 33904297081 in words is "thirty-three billion, nine hundred four million, two hundred ninety-seven thousand, eighty-one".