1444553659507 has 16 divisors (see below), whose sum is σ = 1658371656960. Its totient is φ = 1232600552928.

The previous prime is 1444553659501. The next prime is 1444553659531. The reversal of 1444553659507 is 7059563554441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444553659507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1444553659501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11458068 + ... + 11583454.

It is an arithmetic number, because the mean of its divisors is an integer number (103648228560).

Almost surely, 2^{1444553659507} is an apocalyptic number.

1444553659507 is a deficient number, since it is larger than the sum of its proper divisors (213817997453).

1444553659507 is a wasteful number, since it uses less digits than its factorization.

1444553659507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132810.

The product of its (nonzero) digits is 45360000, while the sum is 58.

The spelling of 1444553659507 in words is "one trillion, four hundred forty-four billion, five hundred fifty-three million, six hundred fifty-nine thousand, five hundred seven".