133195802246849 has 2 divisors, whose sum is σ = 133195802246850. Its totient is φ = 133195802246848.

The previous prime is 133195802246831. The next prime is 133195802246869. The reversal of 133195802246849 is 948642208591331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95075760462400 + 38120041784449 = 9750680^2 + 6174143^2 .

It is a cyclic number.

It is not a de Polignac number, because 133195802246849 - 2⁸ = 133195802246593 is a prime.

It is a super-2 number, since 2×133195802246849² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133195802246869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66597901123424 + 66597901123425.

It is an arithmetic number, because the mean of its divisors is an integer number (66597901123425).

Almost surely, 2^{133195802246849} is an apocalyptic number.

It is an amenable number.

133195802246849 is a deficient number, since it is larger than the sum of its proper divisors (1).

133195802246849 is an equidigital number, since it uses as much as digits as its factorization.

133195802246849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89579520, while the sum is 65.

The spelling of 133195802246849 in words is "one hundred thirty-three trillion, one hundred ninety-five billion, eight hundred two million, two hundred forty-six thousand, eight hundred forty-nine".