18536928522 has 64 divisors (see below), whose sum is σ = 44530698240. Its totient is φ = 5029510464.

The previous prime is 18536928521. The next prime is 18536928541. The reversal of 18536928522 is 22582963581.

It is not an unprimeable number, because it can be changed into a prime (18536928521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65248 + ... + 203300.

It is an arithmetic number, because the mean of its divisors is an integer number (695792160).

Almost surely, 2^18536928522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18536928522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22265349120).

18536928522 is an abundant number, since it is smaller than the sum of its proper divisors (25993769718).

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

18536928522 is a wasteful number, since it uses less digits than its factorization.

18536928522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138227.

The product of its digits is 2073600, while the sum is 51.

The spelling of 18536928522 in words is "eighteen billion, five hundred thirty-six million, nine hundred twenty-eight thousand, five hundred twenty-two".