33507742811 has 2 divisors, whose sum is σ = 33507742812. Its totient is φ = 33507742810.

The previous prime is 33507742711. The next prime is 33507742813. The reversal of 33507742811 is 11824770533.

It is a strong prime.

It is an emirp because it is prime and its reverse (11824770533) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33507742811 - 2¹⁸ = 33507480667 is a prime.

It is a super-2 number, since 2×33507742811² (a number of 22 digits) contains 22 as substring.

Together with 33507742813, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33507742813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16753871405 + 16753871406.

It is an arithmetic number, because the mean of its divisors is an integer number (16753871406).

Almost surely, 2^33507742811 is an apocalyptic number.

33507742811 is a deficient number, since it is larger than the sum of its proper divisors (1).

33507742811 is an equidigital number, since it uses as much as digits as its factorization.

33507742811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 33507742811 in words is "thirty-three billion, five hundred seven million, seven hundred forty-two thousand, eight hundred eleven".