36634985819 has 2 divisors, whose sum is σ = 36634985820. Its totient is φ = 36634985818.

The previous prime is 36634985813. The next prime is 36634985857. The reversal of 36634985819 is 91858943663.

36634985819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36634985819 - 2²⁰ = 36633937243 is a prime.

It is a super-2 number, since 2×36634985819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36634985813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18317492909 + 18317492910.

It is an arithmetic number, because the mean of its divisors is an integer number (18317492910).

Almost surely, 2^36634985819 is an apocalyptic number.

36634985819 is a deficient number, since it is larger than the sum of its proper divisors (1).

36634985819 is an equidigital number, since it uses as much as digits as its factorization.

36634985819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33592320, while the sum is 62.

The spelling of 36634985819 in words is "thirty-six billion, six hundred thirty-four million, nine hundred eighty-five thousand, eight hundred nineteen".