1444658983945 has 16 divisors (see below), whose sum is σ = 1747495328400. Its totient is φ = 1146487250944.

The previous prime is 1444658983931. The next prime is 1444658983967. The reversal of 1444658983945 is 5493898564441.

It can be written as a sum of positive squares in 8 ways, for example, as 22335601401 + 1422323382544 = 149451^2 + 1192612^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444658983945 - 2⁵ = 1444658983913 is a prime.

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, 1471444 + ... + 2248213.

It is an arithmetic number, because the mean of its divisors is an integer number (109218458025).

Almost surely, 2^{1444658983945} is an apocalyptic number.

It is an amenable number.

1444658983945 is a deficient number, since it is larger than the sum of its proper divisors (302836344455).

1444658983945 is a wasteful number, since it uses less digits than its factorization.

1444658983945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720284.

The product of its digits is 597196800, while the sum is 70.

The spelling of 1444658983945 in words is "one trillion, four hundred forty-four billion, six hundred fifty-eight million, nine hundred eighty-three thousand, nine hundred forty-five".