36381216808 has 8 divisors (see below), whose sum is σ = 68214781530. Its totient is φ = 18190608400.

The previous prime is 36381216763. The next prime is 36381216863. The reversal of 36381216808 is 80861218363.

It can be written as a sum of positive squares in only one way, i.e., 31285826884 + 5095389924 = 176878^2 + 71382^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2273826043 + ... + 2273826058.

Almost surely, 2^36381216808 is an apocalyptic number.

It is an amenable number.

36381216808 is a deficient number, since it is larger than the sum of its proper divisors (31833564722).

36381216808 is a wasteful number, since it uses less digits than its factorization.

36381216808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547652107 (or 4547652103 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 36381216808 in words is "thirty-six billion, three hundred eighty-one million, two hundred sixteen thousand, eight hundred eight".