7218266814 has 48 divisors (see below), whose sum is σ = 17277361920. Its totient is φ = 2159660880.

The previous prime is 7218266807. The next prime is 7218266819. The reversal of 7218266814 is 4186628127.

It is a self number, because there is not a number n which added to its sum of digits gives 7218266814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7218266819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215092 + ... + 246375.

It is an arithmetic number, because the mean of its divisors is an integer number (359945040).

Almost surely, 2^7218266814 is an apocalyptic number.

7218266814 is an abundant number, since it is smaller than the sum of its proper divisors (10059095106).

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

7218266814 is a wasteful number, since it uses less digits than its factorization.

7218266814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461565 (or 461562 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 7218266814 is about 84960.3837915060. The cubic root of 7218266814 is about 1932.6103915379.

The spelling of 7218266814 in words is "seven billion, two hundred eighteen million, two hundred sixty-six thousand, eight hundred fourteen".