36866442761 has 2 divisors, whose sum is σ = 36866442762. Its totient is φ = 36866442760.

The previous prime is 36866442713. The next prime is 36866442827. The reversal of 36866442761 is 16724466863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32623223161 + 4243219600 = 180619^2 + 65140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36866442761 is a prime.

It is not a weakly prime, because it can be changed into another prime (36866442661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18433221380 + 18433221381.

It is an arithmetic number, because the mean of its divisors is an integer number (18433221381).

Almost surely, 2^36866442761 is an apocalyptic number.

It is an amenable number.

36866442761 is a deficient number, since it is larger than the sum of its proper divisors (1).

36866442761 is an equidigital number, since it uses as much as digits as its factorization.

36866442761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6967296, while the sum is 53.

The spelling of 36866442761 in words is "thirty-six billion, eight hundred sixty-six million, four hundred forty-two thousand, seven hundred sixty-one".