36809809919 has 8 divisors (see below), whose sum is σ = 37464989760. Its totient is φ = 36159361056.

The previous prime is 36809809903. The next prime is 36809809943. The reversal of 36809809919 is 91990890863.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36809809919 - 2⁴ = 36809809903 is a prime.

It is a super-2 number, since 2×36809809919² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36809809979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1167044 + ... + 1198169.

It is an arithmetic number, because the mean of its divisors is an integer number (4683123720).

Almost surely, 2^36809809919 is an apocalyptic number.

36809809919 is a deficient number, since it is larger than the sum of its proper divisors (655179841).

36809809919 is a wasteful number, since it uses less digits than its factorization.

36809809919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365489.

The product of its (nonzero) digits is 7558272, while the sum is 62.

The spelling of 36809809919 in words is "thirty-six billion, eight hundred nine million, eight hundred nine thousand, nine hundred nineteen".