33243140389 has 2 divisors, whose sum is σ = 33243140390. Its totient is φ = 33243140388.

The previous prime is 33243140387. The next prime is 33243140393. The reversal of 33243140389 is 98304134233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31268848900 + 1974291489 = 176830^2 + 44433^2 .

It is a cyclic number.

It is not a de Polignac number, because 33243140389 - 2¹ = 33243140387 is a prime.

It is a super-2 number, since 2×33243140389² (a number of 22 digits) contains 22 as substring.

Together with 33243140387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33243140387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16621570194 + 16621570195.

It is an arithmetic number, because the mean of its divisors is an integer number (16621570195).

Almost surely, 2^33243140389 is an apocalyptic number.

It is an amenable number.

33243140389 is a deficient number, since it is larger than the sum of its proper divisors (1).

33243140389 is an equidigital number, since it uses as much as digits as its factorization.

33243140389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 33243140389 in words is "thirty-three billion, two hundred forty-three million, one hundred forty thousand, three hundred eighty-nine".