36866534893 has 2 divisors, whose sum is σ = 36866534894. Its totient is φ = 36866534892.

The previous prime is 36866534833. The next prime is 36866534899. The reversal of 36866534893 is 39843566863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23598489924 + 13268044969 = 153618^2 + 115187^2 .

It is a cyclic number.

It is not a de Polignac number, because 36866534893 - 2¹³ = 36866526701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36866534899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18433267446 + 18433267447.

It is an arithmetic number, because the mean of its divisors is an integer number (18433267447).

Almost surely, 2^36866534893 is an apocalyptic number.

It is an amenable number.

36866534893 is a deficient number, since it is larger than the sum of its proper divisors (1).

36866534893 is an equidigital number, since it uses as much as digits as its factorization.

36866534893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67184640, while the sum is 61.

The spelling of 36866534893 in words is "thirty-six billion, eight hundred sixty-six million, five hundred thirty-four thousand, eight hundred ninety-three".