36503642243 has 4 divisors (see below), whose sum is σ = 36504347880. Its totient is φ = 36502936608.

The previous prime is 36503642221. The next prime is 36503642267. The reversal of 36503642243 is 34224630563.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36503642243 - 2¹⁸ = 36503380099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36503642197 and 36503642206.

It is not an unprimeable number, because it can be changed into a prime (36503641243) 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, 268505 + ... + 380922.

It is an arithmetic number, because the mean of its divisors is an integer number (9126086970).

Almost surely, 2^36503642243 is an apocalyptic number.

36503642243 is a deficient number, since it is larger than the sum of its proper divisors (705637).

36503642243 is an equidigital number, since it uses as much as digits as its factorization.

36503642243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705636.

The product of its (nonzero) digits is 311040, while the sum is 38.

The spelling of 36503642243 in words is "thirty-six billion, five hundred three million, six hundred forty-two thousand, two hundred forty-three".