36689861869 has 4 divisors (see below), whose sum is σ = 36697872096. Its totient is φ = 36681851644.

The previous prime is 36689861837. The next prime is 36689861909. The reversal of 36689861869 is 96816898663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36689861869 - 2⁵ = 36689861837 is a prime.

It is a super-2 number, since 2×36689861869² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36689861798 and 36689861807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36689861269) 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 3 ways as a sum of consecutive naturals, for example, 3998239 + ... + 4007404.

It is an arithmetic number, because the mean of its divisors is an integer number (9174468024).

Almost surely, 2^36689861869 is an apocalyptic number.

It is an amenable number.

36689861869 is a deficient number, since it is larger than the sum of its proper divisors (8010227).

36689861869 is an equidigital number, since it uses as much as digits as its factorization.

36689861869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8010226.

The product of its digits is 161243136, while the sum is 70.

The spelling of 36689861869 in words is "thirty-six billion, six hundred eighty-nine million, eight hundred sixty-one thousand, eight hundred sixty-nine".