36398994817 has 2 divisors, whose sum is σ = 36398994818. Its totient is φ = 36398994816.

The previous prime is 36398994803. The next prime is 36398994833. The reversal of 36398994817 is 71849989363.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26966894656 + 9432100161 = 164216^2 + 97119^2 .

It is a cyclic number.

It is not a de Polignac number, because 36398994817 - 2¹⁵ = 36398962049 is a prime.

It is not a weakly prime, because it can be changed into another prime (36398994617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18199497408 + 18199497409.

It is an arithmetic number, because the mean of its divisors is an integer number (18199497409).

Almost surely, 2^36398994817 is an apocalyptic number.

It is an amenable number.

36398994817 is a deficient number, since it is larger than the sum of its proper divisors (1).

36398994817 is an equidigital number, since it uses as much as digits as its factorization.

36398994817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70543872, while the sum is 67.

The spelling of 36398994817 in words is "thirty-six billion, three hundred ninety-eight million, nine hundred ninety-four thousand, eight hundred seventeen".