18230747814 has 32 divisors (see below), whose sum is σ = 40568586240. Its totient is φ = 6068543976.

The previous prime is 18230747813. The next prime is 18230747831. The reversal of 18230747814 is 41874703281.

It is a self number, because there is not a number n which added to its sum of digits gives 18230747814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18230747813) 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, 192934 + ... + 271449.

It is an arithmetic number, because the mean of its divisors is an integer number (1267768320).

Almost surely, 2^18230747814 is an apocalyptic number.

18230747814 is an abundant number, since it is smaller than the sum of its proper divisors (22337838426).

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

18230747814 is a wasteful number, since it uses less digits than its factorization.

18230747814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465121 (or 465115 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The spelling of 18230747814 in words is "eighteen billion, two hundred thirty million, seven hundred forty-seven thousand, eight hundred fourteen".