33940645363 has 2 divisors, whose sum is σ = 33940645364. Its totient is φ = 33940645362.

The previous prime is 33940645357. The next prime is 33940645373. The reversal of 33940645363 is 36354604933.

It is a weak prime.

It is an emirp because it is prime and its reverse (36354604933) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33940645363 - 2²⁹ = 33403774451 is a prime.

It is not a weakly prime, because it can be changed into another prime (33940645373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16970322681 + 16970322682.

It is an arithmetic number, because the mean of its divisors is an integer number (16970322682).

Almost surely, 2^33940645363 is an apocalyptic number.

33940645363 is a deficient number, since it is larger than the sum of its proper divisors (1).

33940645363 is an equidigital number, since it uses as much as digits as its factorization.

33940645363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2099520, while the sum is 46.

The spelling of 33940645363 in words is "thirty-three billion, nine hundred forty million, six hundred forty-five thousand, three hundred sixty-three".