36639860444873 has 12 divisors (see below), whose sum is σ = 43222186628352. Its totient is φ = 30963262344840.

The previous prime is 36639860444861. The next prime is 36639860444897. The reversal of 36639860444873 is 37844406893663.

It is not a de Polignac number, because 36639860444873 - 2⁶ = 36639860444809 is a prime.

It is a super-2 number, since 2×36639860444873² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (71).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36639860444797 and 36639860444806.

It is not an unprimeable number, because it can be changed into a prime (36639860444813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5265857465 + ... + 5265864422.

It is an arithmetic number, because the mean of its divisors is an integer number (3601848885696).

Almost surely, 2^{36639860444873} is an apocalyptic number.

It is an amenable number.

36639860444873 is a deficient number, since it is larger than the sum of its proper divisors (6582326183479).

36639860444873 is a wasteful number, since it uses less digits than its factorization.

36639860444873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10531721972 (or 10531721965 counting only the distinct ones).

The product of its (nonzero) digits is 1504935936, while the sum is 71.

The spelling of 36639860444873 in words is "thirty-six trillion, six hundred thirty-nine billion, eight hundred sixty million, four hundred forty-four thousand, eight hundred seventy-three".