33534966749 has 2 divisors, whose sum is σ = 33534966750. Its totient is φ = 33534966748.

The previous prime is 33534966709. The next prime is 33534966767. The reversal of 33534966749 is 94766943533.

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., 31606439524 + 1928527225 = 177782^2 + 43915^2 .

It is an emirp because it is prime and its reverse (94766943533) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33534966749 - 2²⁸ = 33266531293 is a prime.

It is a super-2 number, since 2×33534966749² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33534966709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16767483374 + 16767483375.

It is an arithmetic number, because the mean of its divisors is an integer number (16767483375).

Almost surely, 2^33534966749 is an apocalyptic number.

It is an amenable number.

33534966749 is a deficient number, since it is larger than the sum of its proper divisors (1).

33534966749 is an equidigital number, since it uses as much as digits as its factorization.

33534966749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44089920, while the sum is 59.

The spelling of 33534966749 in words is "thirty-three billion, five hundred thirty-four million, nine hundred sixty-six thousand, seven hundred forty-nine".