14891137855 has 24 divisors (see below), whose sum is σ = 19652882256. Its totient is φ = 10823662080.

The previous prime is 14891137847. The next prime is 14891137861. The reversal of 14891137855 is 55873119841.

It is not a de Polignac number, because 14891137855 - 2³ = 14891137847 is a prime.

It is a super-2 number, since 2×14891137855² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1214184 + ... + 1226386.

It is an arithmetic number, because the mean of its divisors is an integer number (818870094).

Almost surely, 2^14891137855 is an apocalyptic number.

14891137855 is the 61015-th decagonal number.

14891137855 is a deficient number, since it is larger than the sum of its proper divisors (4761744401).

14891137855 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (14891137854) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (14236).

14891137855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14247 (or 14236 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 52.

The spelling of 14891137855 in words is "fourteen billion, eight hundred ninety-one million, one hundred thirty-seven thousand, eight hundred fifty-five".