33420086489 has 2 divisors, whose sum is σ = 33420086490. Its totient is φ = 33420086488.

The previous prime is 33420086389. The next prime is 33420086507. The reversal of 33420086489 is 98468002433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26762342464 + 6657744025 = 163592^2 + 81595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33420086489 is a prime.

It is a super-2 number, since 2×33420086489² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33420086389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16710043244 + 16710043245.

It is an arithmetic number, because the mean of its divisors is an integer number (16710043245).

Almost surely, 2^33420086489 is an apocalyptic number.

It is an amenable number.

33420086489 is a deficient number, since it is larger than the sum of its proper divisors (1).

33420086489 is an equidigital number, since it uses as much as digits as its factorization.

33420086489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 33420086489 in words is "thirty-three billion, four hundred twenty million, eighty-six thousand, four hundred eighty-nine".