18535324847242 has 12 divisors (see below), whose sum is σ = 32342250498930. Its totient is φ = 7943710648776.

The previous prime is 18535324847197. The next prime is 18535324847243. The reversal of 18535324847242 is 24274842353581.

It can be written as a sum of positive squares in only one way, i.e., 16026018569001 + 2509306278241 = 4003251^2 + 1584079^2 .

It is not an unprimeable number, because it can be changed into a prime (18535324847243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94567983817 + ... + 94567984012.

Almost surely, 2^{18535324847242} is an apocalyptic number.

18535324847242 is a deficient number, since it is larger than the sum of its proper divisors (13806925651688).

18535324847242 is a wasteful number, since it uses less digits than its factorization.

18535324847242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189135967845 (or 189135967838 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 58.

The spelling of 18535324847242 in words is "eighteen trillion, five hundred thirty-five billion, three hundred twenty-four million, eight hundred forty-seven thousand, two hundred forty-two".