13906505018 has 8 divisors (see below), whose sum is σ = 23839722912. Its totient is φ = 5959930716.

The previous prime is 13906504987. The next prime is 13906505021. The reversal of 13906505018 is 81050560931.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496660880 + ... + 496660907.

It is an arithmetic number, because the mean of its divisors is an integer number (2979965364).

Almost surely, 2^13906505018 is an apocalyptic number.

13906505018 is a deficient number, since it is larger than the sum of its proper divisors (9933217894).

13906505018 is an equidigital number, since it uses as much as digits as its factorization.

13906505018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993321796.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 13906505018 in words is "thirteen billion, nine hundred six million, five hundred five thousand, eighteen".