1441868681553 has 4 divisors (see below), whose sum is σ = 1922491575408. Its totient is φ = 961245787700.

The previous prime is 1441868681537. The next prime is 1441868681557. The reversal of 1441868681553 is 3551868681441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1441868681553 - 2⁴ = 1441868681537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1441868681557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240311446923 + ... + 240311446928.

It is an arithmetic number, because the mean of its divisors is an integer number (480622893852).

Almost surely, 2^{1441868681553} is an apocalyptic number.

It is an amenable number.

1441868681553 is a deficient number, since it is larger than the sum of its proper divisors (480622893855).

1441868681553 is an equidigital number, since it uses as much as digits as its factorization.

1441868681553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480622893854.

The product of its digits is 22118400, while the sum is 60.

The spelling of 1441868681553 in words is "one trillion, four hundred forty-one billion, eight hundred sixty-eight million, six hundred eighty-one thousand, five hundred fifty-three".