36640038399 has 4 divisors (see below), whose sum is σ = 48853384536. Its totient is φ = 24426692264.

The previous prime is 36640038397. The next prime is 36640038469. The reversal of 36640038399 is 99383004663.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36640038399 - 2¹ = 36640038397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36640038397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6106673064 + ... + 6106673069.

It is an arithmetic number, because the mean of its divisors is an integer number (12213346134).

Almost surely, 2^36640038399 is an apocalyptic number.

36640038399 is a deficient number, since it is larger than the sum of its proper divisors (12213346137).

36640038399 is a wasteful number, since it uses less digits than its factorization.

36640038399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12213346136.

The product of its (nonzero) digits is 2519424, while the sum is 51.

The spelling of 36640038399 in words is "thirty-six billion, six hundred forty million, thirty-eight thousand, three hundred ninety-nine".