33968400784253 has 4 divisors (see below), whose sum is σ = 36581354690748. Its totient is φ = 31355446877760.

The previous prime is 33968400784247. The next prime is 33968400784259. The reversal of 33968400784253 is 35248700486933.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (33968400784247) and next prime (33968400784259).

It can be written as a sum of positive squares in 2 ways, for example, as 5265615964249 + 28702784820004 = 2294693^2 + 5357498^2 .

It is a cyclic number.

It is not a de Polignac number, because 33968400784253 - 2¹⁸ = 33968400522109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33968400784259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1306476953228 + ... + 1306476953253.

It is an arithmetic number, because the mean of its divisors is an integer number (9145338672687).

Almost surely, 2^{33968400784253} is an apocalyptic number.

It is an amenable number.

33968400784253 is a deficient number, since it is larger than the sum of its proper divisors (2612953906495).

33968400784253 is a wasteful number, since it uses less digits than its factorization.

33968400784253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612953906494.

The product of its (nonzero) digits is 104509440, while the sum is 62.

The spelling of 33968400784253 in words is "thirty-three trillion, nine hundred sixty-eight billion, four hundred million, seven hundred eighty-four thousand, two hundred fifty-three".