33285857413 has 2 divisors, whose sum is σ = 33285857414. Its totient is φ = 33285857412.

The previous prime is 33285857399. The next prime is 33285857461. The reversal of 33285857413 is 31475858233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31626354244 + 1659503169 = 177838^2 + 40737^2 .

It is an emirp because it is prime and its reverse (31475858233) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33285857413 is a prime.

It is a super-2 number, since 2×33285857413² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33285857483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16642928706 + 16642928707.

It is an arithmetic number, because the mean of its divisors is an integer number (16642928707).

Almost surely, 2^33285857413 is an apocalyptic number.

It is an amenable number.

33285857413 is a deficient number, since it is larger than the sum of its proper divisors (1).

33285857413 is an equidigital number, since it uses as much as digits as its factorization.

33285857413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 49.

The spelling of 33285857413 in words is "thirty-three billion, two hundred eighty-five million, eight hundred fifty-seven thousand, four hundred thirteen".