18217617483 has 8 divisors (see below), whose sum is σ = 26158630288. Its totient is φ = 11210841504.

The previous prime is 18217617463. The next prime is 18217617491. The reversal of 18217617483 is 38471671281.

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

It is not a de Polignac number, because 18217617483 - 2¹² = 18217613387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18217617413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233559160 + ... + 233559237.

It is an arithmetic number, because the mean of its divisors is an integer number (3269828786).

Almost surely, 2^18217617483 is an apocalyptic number.

18217617483 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

18217617483 is a deficient number, since it is larger than the sum of its proper divisors (7941012805).

18217617483 is a wasteful number, since it uses less digits than its factorization.

18217617483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467118413.

The product of its digits is 451584, while the sum is 48.

The spelling of 18217617483 in words is "eighteen billion, two hundred seventeen million, six hundred seventeen thousand, four hundred eighty-three".