33429061889 has 2 divisors, whose sum is σ = 33429061890. Its totient is φ = 33429061888.

The previous prime is 33429061867. The next prime is 33429061891. The reversal of 33429061889 is 98816092433.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17578251889 + 15850810000 = 132583^2 + 125900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33429061889 is a prime.

It is a super-2 number, since 2×33429061889² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 33429061891, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 33429061889.

It is not a weakly prime, because it can be changed into another prime (33429061819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16714530944 + 16714530945.

It is an arithmetic number, because the mean of its divisors is an integer number (16714530945).

Almost surely, 2^33429061889 is an apocalyptic number.

It is an amenable number.

33429061889 is a deficient number, since it is larger than the sum of its proper divisors (1).

33429061889 is an equidigital number, since it uses as much as digits as its factorization.

33429061889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The spelling of 33429061889 in words is "thirty-three billion, four hundred twenty-nine million, sixty-one thousand, eight hundred eighty-nine".