36921683565 has 48 divisors (see below), whose sum is σ = 69043508352. Its totient is φ = 18144381312.

The previous prime is 36921683531. The next prime is 36921683609. The reversal of 36921683565 is 56538612963.

It is a happy number.

36921683565 is a `hidden beast` number, since 3 + 69 + 2 + 16 + 8 + 3 + 565 = 666.

It is not a de Polignac number, because 36921683565 - 2⁷ = 36921683437 is a prime.

It is a super-2 number, since 2×36921683565² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 273304 + ... + 385406.

It is an arithmetic number, because the mean of its divisors is an integer number (1438406424).

Almost surely, 2^36921683565 is an apocalyptic number.

It is an amenable number.

36921683565 is a deficient number, since it is larger than the sum of its proper divisors (32121824787).

36921683565 is a wasteful number, since it uses less digits than its factorization.

36921683565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112690 (or 112687 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 54.

The spelling of 36921683565 in words is "thirty-six billion, nine hundred twenty-one million, six hundred eighty-three thousand, five hundred sixty-five".