13728079918 has 32 divisors (see below), whose sum is σ = 24780983040. Its totient is φ = 5571892800.

The previous prime is 13728079913. The next prime is 13728079927. The reversal of 13728079918 is 81997082731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13728079913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 969993 + ... + 984043.

It is an arithmetic number, because the mean of its divisors is an integer number (774405720).

Almost surely, 2^13728079918 is an apocalyptic number.

13728079918 is a deficient number, since it is larger than the sum of its proper divisors (11052903122).

13728079918 is a wasteful number, since it uses less digits than its factorization.

13728079918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17752.

The product of its (nonzero) digits is 1524096, while the sum is 55.

The spelling of 13728079918 in words is "thirteen billion, seven hundred twenty-eight million, seventy-nine thousand, nine hundred eighteen".