36685824541 has 4 divisors (see below), whose sum is σ = 36784178332. Its totient is φ = 36587470752.

The previous prime is 36685824521. The next prime is 36685824547. The reversal of 36685824541 is 14542858663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14542858663 = 31 ⋅469124473.

It can be written as a sum of positive squares in 2 ways, for example, as 17787823641 + 18898000900 = 133371^2 + 137470^2 .

It is a cyclic number.

It is not a de Polignac number, because 36685824541 - 2¹¹ = 36685822493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36685824547) 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, 49176336 + ... + 49177081.

It is an arithmetic number, because the mean of its divisors is an integer number (9196044583).

Almost surely, 2^36685824541 is an apocalyptic number.

It is an amenable number.

36685824541 is a deficient number, since it is larger than the sum of its proper divisors (98353791).

36685824541 is an equidigital number, since it uses as much as digits as its factorization.

36685824541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98353790.

The product of its digits is 5529600, while the sum is 52.

The spelling of 36685824541 in words is "thirty-six billion, six hundred eighty-five million, eight hundred twenty-four thousand, five hundred forty-one".