1440554817868 has 12 divisors (see below), whose sum is σ = 2520981559600. Its totient is φ = 720274372272.

The previous prime is 1440554817847. The next prime is 1440554817893. The reversal of 1440554817868 is 8687184550441.

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, 564730 + ... + 1788862.

Almost surely, 2^{1440554817868} is an apocalyptic number.

It is an amenable number.

1440554817868 is a deficient number, since it is larger than the sum of its proper divisors (1080426741732).

1440554817868 is a wasteful number, since it uses less digits than its factorization.

1440554817868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518336 (or 1518334 counting only the distinct ones).

The product of its (nonzero) digits is 34406400, while the sum is 61.

The spelling of 1440554817868 in words is "one trillion, four hundred forty billion, five hundred fifty-four million, eight hundred seventeen thousand, eight hundred sixty-eight".