12053447718 has 32 divisors (see below), whose sum is σ = 25969221600. Its totient is φ = 3707617536.

The previous prime is 12053447717. The next prime is 12053447743. The reversal of 12053447718 is 81774435021.

It is a self number, because there is not a number n which added to its sum of digits gives 12053447718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12053447717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253368 + ... + 297156.

It is an arithmetic number, because the mean of its divisors is an integer number (811538175).

Almost surely, 2^12053447718 is an apocalyptic number.

12053447718 is an abundant number, since it is smaller than the sum of its proper divisors (13915773882).

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

12053447718 is a wasteful number, since it uses less digits than its factorization.

12053447718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47336.

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 12053447718 in words is "twelve billion, fifty-three million, four hundred forty-seven thousand, seven hundred eighteen".