14539812644 has 12 divisors (see below), whose sum is σ = 29079625344. Its totient is φ = 6231348264.

The previous prime is 14539812631. The next prime is 14539812667. The reversal of 14539812644 is 44621893541.

14539812644 is an admirable number.

It is a super-2 number, since 2×14539812644² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259639484 + ... + 259639539.

It is an arithmetic number, because the mean of its divisors is an integer number (2423302112).

Almost surely, 2^14539812644 is an apocalyptic number.

14539812644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

14539812644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

14539812644 is a wasteful number, since it uses less digits than its factorization.

14539812644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519279034 (or 519279032 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The spelling of 14539812644 in words is "fourteen billion, five hundred thirty-nine million, eight hundred twelve thousand, six hundred forty-four".