18102080782 has 8 divisors (see below), whose sum is σ = 27665444376. Its totient is φ = 8880265992.

The previous prime is 18102080779. The next prime is 18102080809. The reversal of 18102080782 is 28708020181.

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

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, 85387068 + ... + 85387279.

It is an arithmetic number, because the mean of its divisors is an integer number (3458180547).

Almost surely, 2^18102080782 is an apocalyptic number.

18102080782 is a deficient number, since it is larger than the sum of its proper divisors (9563363594).

18102080782 is a wasteful number, since it uses less digits than its factorization.

18102080782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170774402.

The product of its (nonzero) digits is 14336, while the sum is 37.

The spelling of 18102080782 in words is "eighteen billion, one hundred two million, eighty thousand, seven hundred eighty-two".