18254121614 has 4 divisors (see below), whose sum is σ = 27381182424. Its totient is φ = 9127060806.

The previous prime is 18254121593. The next prime is 18254121667. The reversal of 18254121614 is 41612145281.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×18254121614³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4563530402 + ... + 4563530405.

It is an arithmetic number, because the mean of its divisors is an integer number (6845295606).

Almost surely, 2^18254121614 is an apocalyptic number.

18254121614 is a deficient number, since it is larger than the sum of its proper divisors (9127060810).

18254121614 is an equidigital number, since it uses as much as digits as its factorization.

18254121614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9127060809.

The product of its digits is 15360, while the sum is 35.

Adding to 18254121614 its reverse (41612145281), we get a palindrome (59866266895).

The spelling of 18254121614 in words is "eighteen billion, two hundred fifty-four million, one hundred twenty-one thousand, six hundred fourteen".