36777681233 has 2 divisors, whose sum is σ = 36777681234. Its totient is φ = 36777681232.

The previous prime is 36777681223. The next prime is 36777681247. The reversal of 36777681233 is 33218677763.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33539160769 + 3238520464 = 183137^2 + 56908^2 .

It is a cyclic number.

It is not a de Polignac number, because 36777681233 - 2²⁰ = 36776632657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (36777681223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18388840616 + 18388840617.

It is an arithmetic number, because the mean of its divisors is an integer number (18388840617).

Almost surely, 2^36777681233 is an apocalyptic number.

It is an amenable number.

36777681233 is a deficient number, since it is larger than the sum of its proper divisors (1).

36777681233 is an equidigital number, since it uses as much as digits as its factorization.

36777681233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5334336, while the sum is 53.

The spelling of 36777681233 in words is "thirty-six billion, seven hundred seventy-seven million, six hundred eighty-one thousand, two hundred thirty-three".