36634396691 has 2 divisors, whose sum is σ = 36634396692. Its totient is φ = 36634396690.

The previous prime is 36634396681. The next prime is 36634396697. The reversal of 36634396691 is 19669343663.

It is a strong prime.

It is an emirp because it is prime and its reverse (19669343663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36634396691 - 2⁶ = 36634396627 is a prime.

It is not a weakly prime, because it can be changed into another prime (36634396697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18317198345 + 18317198346.

It is an arithmetic number, because the mean of its divisors is an integer number (18317198346).

Almost surely, 2^36634396691 is an apocalyptic number.

36634396691 is a deficient number, since it is larger than the sum of its proper divisors (1).

36634396691 is an equidigital number, since it uses as much as digits as its factorization.

36634396691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11337408, while the sum is 56.

The spelling of 36634396691 in words is "thirty-six billion, six hundred thirty-four million, three hundred ninety-six thousand, six hundred ninety-one".