36688640803 has 4 divisors (see below), whose sum is σ = 36690095880. Its totient is φ = 36687185728.

The previous prime is 36688640761. The next prime is 36688640873. The reversal of 36688640803 is 30804688663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30804688663 = 7 ⋅4400669809.

It is a cyclic number.

It is not a de Polignac number, because 36688640803 - 2⁹ = 36688640291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36688640873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689038 + ... + 740371.

It is an arithmetic number, because the mean of its divisors is an integer number (9172523970).

Almost surely, 2^36688640803 is an apocalyptic number.

36688640803 is a deficient number, since it is larger than the sum of its proper divisors (1455077).

36688640803 is a wasteful number, since it uses less digits than its factorization.

36688640803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455076.

The product of its (nonzero) digits is 3981312, while the sum is 52.

The spelling of 36688640803 in words is "thirty-six billion, six hundred eighty-eight million, six hundred forty thousand, eight hundred three".