33957368081 has 16 divisors (see below), whose sum is σ = 43993353600. Its totient is φ = 25453294848.

The previous prime is 33957368047. The next prime is 33957368089. The reversal of 33957368081 is 18086375933.

It is a cyclic number.

It is not a de Polignac number, because 33957368081 - 2⁶ = 33957368017 is a prime.

It is a super-2 number, since 2×33957368081² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33957368089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9818216 + ... + 9821673.

It is an arithmetic number, because the mean of its divisors is an integer number (2749584600).

Almost surely, 2^33957368081 is an apocalyptic number.

It is an amenable number.

33957368081 is a deficient number, since it is larger than the sum of its proper divisors (10035985519).

33957368081 is a wasteful number, since it uses less digits than its factorization.

33957368081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19639928.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 33957368081 in words is "thirty-three billion, nine hundred fifty-seven million, three hundred sixty-eight thousand, eighty-one".