33845661841 has 2 divisors, whose sum is σ = 33845661842. Its totient is φ = 33845661840.

The previous prime is 33845661779. The next prime is 33845661887. The reversal of 33845661841 is 14816654833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29964994816 + 3880667025 = 173104^2 + 62295^2 .

It is a cyclic number.

It is not a de Polignac number, because 33845661841 - 2¹⁵ = 33845629073 is a prime.

It is a super-2 number, since 2×33845661841² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33845611841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16922830920 + 16922830921.

It is an arithmetic number, because the mean of its divisors is an integer number (16922830921).

Almost surely, 2^33845661841 is an apocalyptic number.

It is an amenable number.

33845661841 is a deficient number, since it is larger than the sum of its proper divisors (1).

33845661841 is an equidigital number, since it uses as much as digits as its factorization.

33845661841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1658880, while the sum is 49.

The spelling of 33845661841 in words is "thirty-three billion, eight hundred forty-five million, six hundred sixty-one thousand, eight hundred forty-one".