33135332491 has 2 divisors, whose sum is σ = 33135332492. Its totient is φ = 33135332490.

The previous prime is 33135332443. The next prime is 33135332501. The reversal of 33135332491 is 19423353133.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33135332491 - 2¹⁵ = 33135299723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33135332491.

It is not a weakly prime, because it can be changed into another prime (33135312491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16567666245 + 16567666246.

It is an arithmetic number, because the mean of its divisors is an integer number (16567666246).

Almost surely, 2^33135332491 is an apocalyptic number.

33135332491 is a deficient number, since it is larger than the sum of its proper divisors (1).

33135332491 is an equidigital number, since it uses as much as digits as its factorization.

33135332491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 37.

The spelling of 33135332491 in words is "thirty-three billion, one hundred thirty-five million, three hundred thirty-two thousand, four hundred ninety-one".