33940744855 has 4 divisors (see below), whose sum is σ = 40728893832. Its totient is φ = 27152595880.

The previous prime is 33940744823. The next prime is 33940744891. The reversal of 33940744855 is 55844704933.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55844704933 = 151 ⋅369832483.

It is not a de Polignac number, because 33940744855 - 2⁵ = 33940744823 is a prime.

It is a super-2 number, since 2×33940744855² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

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, 3394074481 + ... + 3394074490.

It is an arithmetic number, because the mean of its divisors is an integer number (10182223458).

Almost surely, 2^33940744855 is an apocalyptic number.

33940744855 is a deficient number, since it is larger than the sum of its proper divisors (6788148977).

33940744855 is an equidigital number, since it uses as much as digits as its factorization.

33940744855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6788148976.

The product of its (nonzero) digits is 7257600, while the sum is 52.

The spelling of 33940744855 in words is "thirty-three billion, nine hundred forty million, seven hundred forty-four thousand, eight hundred fifty-five".