33940821755 has 8 divisors (see below), whose sum is σ = 41049687552. Its totient is φ = 26938856448.

The previous prime is 33940821749. The next prime is 33940821767. The reversal of 33940821755 is 55712804933.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33940821755 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26724422 + ... + 26725691.

It is an arithmetic number, because the mean of its divisors is an integer number (5131210944).

Almost surely, 2^33940821755 is an apocalyptic number.

33940821755 is a deficient number, since it is larger than the sum of its proper divisors (7108865797).

33940821755 is a wasteful number, since it uses less digits than its factorization.

33940821755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53450245.

The product of its (nonzero) digits is 907200, while the sum is 47.

It can be divided in two parts, 339408 and 21755, that added together give a palindrome (361163).

The spelling of 33940821755 in words is "thirty-three billion, nine hundred forty million, eight hundred twenty-one thousand, seven hundred fifty-five".