13728808985 has 8 divisors (see below), whose sum is σ = 16475412096. Its totient is φ = 10982486320.

The previous prime is 13728808957. The next prime is 13728809011. The reversal of 13728808985 is 58980882731.

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

It is not a de Polignac number, because 13728808985 - 2¹² = 13728804889 is a prime.

It is a super-2 number, since 2×13728808985² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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, 59312 + ... + 175998.

It is an arithmetic number, because the mean of its divisors is an integer number (2059426512).

Almost surely, 2^13728808985 is an apocalyptic number.

It is an amenable number.

13728808985 is a deficient number, since it is larger than the sum of its proper divisors (2746603111).

13728808985 is a wasteful number, since it uses less digits than its factorization.

13728808985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140223.

The product of its (nonzero) digits is 7741440, while the sum is 59.

The spelling of 13728808985 in words is "thirteen billion, seven hundred twenty-eight million, eight hundred eight thousand, nine hundred eighty-five".