18260719338 has 16 divisors (see below), whose sum is σ = 36678185856. Its totient is φ = 6060781920.

The previous prime is 18260719331. The next prime is 18260719357. The reversal of 18260719338 is 83391706281.

It is not an unprimeable number, because it can be changed into a prime (18260719331) 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, 6529618 + ... + 6532413.

It is an arithmetic number, because the mean of its divisors is an integer number (2292386616).

Almost surely, 2^18260719338 is an apocalyptic number.

18260719338 is an abundant number, since it is smaller than the sum of its proper divisors (18417466518).

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

18260719338 is a wasteful number, since it uses less digits than its factorization.

18260719338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13062269.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 18260719338 in words is "eighteen billion, two hundred sixty million, seven hundred nineteen thousand, three hundred thirty-eight".