33861826673 has 2 divisors, whose sum is σ = 33861826674. Its totient is φ = 33861826672.

The previous prime is 33861826627. The next prime is 33861826681. The reversal of 33861826673 is 37662816833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33010529344 + 851297329 = 181688^2 + 29177^2 .

It is an emirp because it is prime and its reverse (37662816833) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33861826673 is a prime.

It is a super-2 number, since 2×33861826673² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33861820673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16930913336 + 16930913337.

It is an arithmetic number, because the mean of its divisors is an integer number (16930913337).

Almost surely, 2^33861826673 is an apocalyptic number.

It is an amenable number.

33861826673 is a deficient number, since it is larger than the sum of its proper divisors (1).

33861826673 is an equidigital number, since it uses as much as digits as its factorization.

33861826673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 53.

The spelling of 33861826673 in words is "thirty-three billion, eight hundred sixty-one million, eight hundred twenty-six thousand, six hundred seventy-three".