18113259452 has 24 divisors (see below), whose sum is σ = 33209111040. Its totient is φ = 8633663280.

The previous prime is 18113259449. The next prime is 18113259457. The reversal of 18113259452 is 25495231181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18113259457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1081802 + ... + 1098417.

It is an arithmetic number, because the mean of its divisors is an integer number (1383712960).

Almost surely, 2^18113259452 is an apocalyptic number.

It is an amenable number.

18113259452 is a deficient number, since it is larger than the sum of its proper divisors (15095851588).

18113259452 is a wasteful number, since it uses less digits than its factorization.

18113259452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180321 (or 2180319 counting only the distinct ones).

The product of its digits is 86400, while the sum is 41.

The spelling of 18113259452 in words is "eighteen billion, one hundred thirteen million, two hundred fifty-nine thousand, four hundred fifty-two".