14455944781 has 16 divisors (see below), whose sum is σ = 16150311360. Its totient is φ = 12858773760.

The previous prime is 14455944773. The next prime is 14455944821. The reversal of 14455944781 is 18744955441.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 14455944781 - 2³ = 14455944773 is a prime.

It is a super-2 number, since 2×14455944781² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14455944721) 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, 82830 + ... + 189136.

It is an arithmetic number, because the mean of its divisors is an integer number (1009394460).

Almost surely, 2^14455944781 is an apocalyptic number.

It is an amenable number.

14455944781 is a deficient number, since it is larger than the sum of its proper divisors (1694366579).

14455944781 is a wasteful number, since it uses less digits than its factorization.

14455944781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106764.

The product of its digits is 3225600, while the sum is 52.

The spelling of 14455944781 in words is "fourteen billion, four hundred fifty-five million, nine hundred forty-four thousand, seven hundred eighty-one".