36315748561 has 4 divisors (see below), whose sum is σ = 36391564800. Its totient is φ = 36239932324.

The previous prime is 36315748541. The next prime is 36315748577. The reversal of 36315748561 is 16584751363.

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 36315748561 - 2¹¹ = 36315746513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36315748541) 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, 37907401 + ... + 37908358.

It is an arithmetic number, because the mean of its divisors is an integer number (9097891200).

Almost surely, 2^36315748561 is an apocalyptic number.

It is an amenable number.

36315748561 is a deficient number, since it is larger than the sum of its proper divisors (75816239).

36315748561 is an equidigital number, since it uses as much as digits as its factorization.

36315748561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75816238.

The product of its digits is 1814400, while the sum is 49.

The spelling of 36315748561 in words is "thirty-six billion, three hundred fifteen million, seven hundred forty-eight thousand, five hundred sixty-one".