36318640578 has 16 divisors (see below), whose sum is σ = 79240670496. Its totient is φ = 11005648640.

The previous prime is 36318640573. The next prime is 36318640667. The reversal of 36318640578 is 87504681363.

It is a self number, because there is not a number n which added to its sum of digits gives 36318640578.

It is not an unprimeable number, because it can be changed into a prime (36318640573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275141151 + ... + 275141282.

It is an arithmetic number, because the mean of its divisors is an integer number (4952541906).

Almost surely, 2^36318640578 is an apocalyptic number.

36318640578 is an abundant number, since it is smaller than the sum of its proper divisors (42922029918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36318640578 is a wasteful number, since it uses less digits than its factorization.

36318640578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550282449.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 36318640578 in words is "thirty-six billion, three hundred eighteen million, six hundred forty thousand, five hundred seventy-eight".