14644869460 has 24 divisors (see below), whose sum is σ = 33119936136. Its totient is φ = 5407336320.

The previous prime is 14644869439. The next prime is 14644869559. The reversal of 14644869460 is 6496844641.

It can be written as a sum of positive squares in 4 ways, for example, as 2745550404 + 11899319056 = 52398^2 + 109084^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 14644869398 and 14644869407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28162951 + ... + 28163470.

It is an arithmetic number, because the mean of its divisors is an integer number (1379997339).

Almost surely, 2^14644869460 is an apocalyptic number.

14644869460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14644869460 is an abundant number, since it is smaller than the sum of its proper divisors (18475066676).

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

14644869460 is a wasteful number, since it uses less digits than its factorization.

14644869460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56326443 (or 56326441 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 52.

The spelling of 14644869460 in words is "fourteen billion, six hundred forty-four million, eight hundred sixty-nine thousand, four hundred sixty".