1444264421772 has 48 divisors (see below), whose sum is σ = 3384103667840. Its totient is φ = 479403525888.

The previous prime is 1444264421753. The next prime is 1444264421773. The reversal of 1444264421772 is 2771244624441.

It is not an unprimeable number, because it can be changed into a prime (1444264421773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2677428 + ... + 3171300.

Almost surely, 2^{1444264421772} is an apocalyptic number.

1444264421772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1444264421772 is an abundant number, since it is smaller than the sum of its proper divisors (1939839246068).

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

1444264421772 is a wasteful number, since it uses less digits than its factorization.

1444264421772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494902 (or 494900 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 48.

The spelling of 1444264421772 in words is "one trillion, four hundred forty-four billion, two hundred sixty-four million, four hundred twenty-one thousand, seven hundred seventy-two".