72366777766277 has 2 divisors, whose sum is σ = 72366777766278. Its totient is φ = 72366777766276.

The previous prime is 72366777766223. The next prime is 72366777766427. The reversal of 72366777766277 is 77266777766327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52885023739681 + 19481754026596 = 7272209^2 + 4413814^2 .

It is a cyclic number.

It is not a de Polignac number, because 72366777766277 - 2²⁸ = 72366509330821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72366477766277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36183388883138 + 36183388883139.

It is an arithmetic number, because the mean of its divisors is an integer number (36183388883139).

Almost surely, 2^{72366777766277} is an apocalyptic number.

It is an amenable number.

72366777766277 is a deficient number, since it is larger than the sum of its proper divisors (1).

72366777766277 is an equidigital number, since it uses as much as digits as its factorization.

72366777766277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12807740736, while the sum is 80.

The spelling of 72366777766277 in words is "seventy-two trillion, three hundred sixty-six billion, seven hundred seventy-seven million, seven hundred sixty-six thousand, two hundred seventy-seven".