18116471486 has 16 divisors (see below), whose sum is σ = 28157995008. Its totient is φ = 8732695800.

The previous prime is 18116471407. The next prime is 18116471491. The reversal of 18116471486 is 68417461181.

It is a self number, because there is not a number n which added to its sum of digits gives 18116471486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539210 + ... + 571821.

It is an arithmetic number, because the mean of its divisors is an integer number (1759874688).

Almost surely, 2^18116471486 is an apocalyptic number.

18116471486 is a deficient number, since it is larger than the sum of its proper divisors (10041523522).

18116471486 is a wasteful number, since it uses less digits than its factorization.

18116471486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111327.

The product of its digits is 258048, while the sum is 47.

The spelling of 18116471486 in words is "eighteen billion, one hundred sixteen million, four hundred seventy-one thousand, four hundred eighty-six".