18614323641 has 8 divisors (see below), whose sum is σ = 25674929280. Its totient is φ = 11981633552.

The previous prime is 18614323639. The next prime is 18614323657. The reversal of 18614323641 is 14632341681.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 18614323641 - 2¹ = 18614323639 is a prime.

It is a super-2 number, since 2×18614323641² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18614323641.

It is not an unprimeable number, because it can be changed into a prime (18614323241) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 106978785 + ... + 106978958.

It is an arithmetic number, because the mean of its divisors is an integer number (3209366160).

Almost surely, 2^18614323641 is an apocalyptic number.

It is an amenable number.

18614323641 is a deficient number, since it is larger than the sum of its proper divisors (7060605639).

18614323641 is a wasteful number, since it uses less digits than its factorization.

18614323641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213957775.

The product of its digits is 82944, while the sum is 39.

The spelling of 18614323641 in words is "eighteen billion, six hundred fourteen million, three hundred twenty-three thousand, six hundred forty-one".