36840344369 has 4 divisors (see below), whose sum is σ = 38442098496. Its totient is φ = 35238590244.

The previous prime is 36840344353. The next prime is 36840344381. The reversal of 36840344369 is 96344304863.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96344304863 = 1231 ⋅78265073.

It is a cyclic number.

It is not a de Polignac number, because 36840344369 - 2⁴ = 36840344353 is a prime.

It is a super-2 number, since 2×36840344369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36840344339) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 800877029 + ... + 800877074.

It is an arithmetic number, because the mean of its divisors is an integer number (9610524624).

Almost surely, 2^36840344369 is an apocalyptic number.

It is an amenable number.

36840344369 is a deficient number, since it is larger than the sum of its proper divisors (1601754127).

36840344369 is a wasteful number, since it uses less digits than its factorization.

36840344369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601754126.

The product of its (nonzero) digits is 4478976, while the sum is 50.

The spelling of 36840344369 in words is "thirty-six billion, eight hundred forty million, three hundred forty-four thousand, three hundred sixty-nine".