36821568533 has 2 divisors, whose sum is σ = 36821568534. Its totient is φ = 36821568532.

The previous prime is 36821568473. The next prime is 36821568541. The reversal of 36821568533 is 33586512863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33532201924 + 3289366609 = 183118^2 + 57353^2 .

It is an emirp because it is prime and its reverse (33586512863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36821568533 - 2¹⁰ = 36821567509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36821568233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18410784266 + 18410784267.

It is an arithmetic number, because the mean of its divisors is an integer number (18410784267).

Almost surely, 2^36821568533 is an apocalyptic number.

It is an amenable number.

36821568533 is a deficient number, since it is larger than the sum of its proper divisors (1).

36821568533 is an equidigital number, since it uses as much as digits as its factorization.

36821568533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3110400, while the sum is 50.

The spelling of 36821568533 in words is "thirty-six billion, eight hundred twenty-one million, five hundred sixty-eight thousand, five hundred thirty-three".