13855453986 has 24 divisors (see below), whose sum is σ = 30232167984. Its totient is φ = 4198332640.

The previous prime is 13855453967. The next prime is 13855453991. The reversal of 13855453986 is 68935455831.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 949030 + ... + 963518.

It is an arithmetic number, because the mean of its divisors is an integer number (1259673666).

Almost surely, 2^13855453986 is an apocalyptic number.

13855453986 is an abundant number, since it is smaller than the sum of its proper divisors (16376713998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13855453986 is an frugal number, since it uses more digits than its factorization.

13855453986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28994 (or 14505 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 57.

The spelling of 13855453986 in words is "thirteen billion, eight hundred fifty-five million, four hundred fifty-three thousand, nine hundred eighty-six".