33242745307 has 2 divisors, whose sum is σ = 33242745308. Its totient is φ = 33242745306.

The previous prime is 33242745293. The next prime is 33242745323. The reversal of 33242745307 is 70354724233.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33242745307 is a prime.

It is a super-2 number, since 2×33242745307² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33242745307.

It is not a weakly prime, because it can be changed into another prime (33242745397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16621372653 + 16621372654.

It is an arithmetic number, because the mean of its divisors is an integer number (16621372654).

Almost surely, 2^33242745307 is an apocalyptic number.

33242745307 is a deficient number, since it is larger than the sum of its proper divisors (1).

33242745307 is an equidigital number, since it uses as much as digits as its factorization.

33242745307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 40.

The spelling of 33242745307 in words is "thirty-three billion, two hundred forty-two million, seven hundred forty-five thousand, three hundred seven".