14640557844 has 48 divisors (see below), whose sum is σ = 39228295680. Its totient is φ = 4203030240.

The previous prime is 14640557821. The next prime is 14640557903. The reversal of 14640557844 is 44875504641.

It is a junction number, because it is equal to n+sod(n) for n = 14640557793 and 14640557802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2916264 + ... + 2921279.

It is an arithmetic number, because the mean of its divisors is an integer number (817256160).

Almost surely, 2^14640557844 is an apocalyptic number.

It is an amenable number.

14640557844 is an abundant number, since it is smaller than the sum of its proper divisors (24587737836).

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

14640557844 is a wasteful number, since it uses less digits than its factorization.

14640557844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5837580 (or 5837578 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 48.

The spelling of 14640557844 in words is "fourteen billion, six hundred forty million, five hundred fifty-seven thousand, eight hundred forty-four".