18078788662 has 8 divisors (see below), whose sum is σ = 29583472392. Its totient is φ = 8217631200.

The previous prime is 18078788639. The next prime is 18078788677. The reversal of 18078788662 is 26688787081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18078788662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410881539 + ... + 410881582.

It is an arithmetic number, because the mean of its divisors is an integer number (3697934049).

Almost surely, 2^18078788662 is an apocalyptic number.

18078788662 is a deficient number, since it is larger than the sum of its proper divisors (11504683730).

18078788662 is a wasteful number, since it uses less digits than its factorization.

18078788662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821763134.

The product of its (nonzero) digits is 14450688, while the sum is 61.

The spelling of 18078788662 in words is "eighteen billion, seventy-eight million, seven hundred eighty-eight thousand, six hundred sixty-two".