1444291378656 has 96 divisors (see below), whose sum is σ = 4342356184320. Its totient is φ = 411751627776.

The previous prime is 1444291378633. The next prime is 1444291378679. The reversal of 1444291378656 is 6568731924441.

It is an interprime number because it is at equal distance from previous prime (1444291378633) and next prime (1444291378679).

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 1444291378656.

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, 2044366 + ... + 2658573.

It is an arithmetic number, because the mean of its divisors is an integer number (45232876920).

Almost surely, 2^{1444291378656} is an apocalyptic number.

1444291378656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1444291378656 is an abundant number, since it is smaller than the sum of its proper divisors (2898064805664).

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

1444291378656 is a wasteful number, since it uses less digits than its factorization.

1444291378656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4703416 (or 4703408 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 60.

The spelling of 1444291378656 in words is "one trillion, four hundred forty-four billion, two hundred ninety-one million, three hundred seventy-eight thousand, six hundred fifty-six".