18614090505 has 8 divisors (see below), whose sum is σ = 29782544832. Its totient is φ = 9927514928.

The previous prime is 18614090489. The next prime is 18614090543. The reversal of 18614090505 is 50509041681.

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 18614090505 - 2⁴ = 18614090489 is a prime.

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, 620469669 + ... + 620469698.

It is an arithmetic number, because the mean of its divisors is an integer number (3722818104).

Almost surely, 2^18614090505 is an apocalyptic number.

18614090505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18614090505 is a deficient number, since it is larger than the sum of its proper divisors (11168454327).

18614090505 is a wasteful number, since it uses less digits than its factorization.

18614090505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240939375.

The product of its (nonzero) digits is 43200, while the sum is 39.

The spelling of 18614090505 in words is "eighteen billion, six hundred fourteen million, ninety thousand, five hundred five".