33982909997 has 2 divisors, whose sum is σ = 33982909998. Its totient is φ = 33982909996.

The previous prime is 33982909991. The next prime is 33982910011. The reversal of 33982909997 is 79990928933.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30673669321 + 3309240676 = 175139^2 + 57526^2 .

It is a cyclic number.

It is not a de Polignac number, because 33982909997 - 2⁴ = 33982909981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33982909991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16991454998 + 16991454999.

It is an arithmetic number, because the mean of its divisors is an integer number (16991454999).

Almost surely, 2^33982909997 is an apocalyptic number.

It is an amenable number.

33982909997 is a deficient number, since it is larger than the sum of its proper divisors (1).

33982909997 is an equidigital number, since it uses as much as digits as its factorization.

33982909997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 59521392, while the sum is 68.

The spelling of 33982909997 in words is "thirty-three billion, nine hundred eighty-two million, nine hundred nine thousand, nine hundred ninety-seven".