1444480768687 has 16 divisors (see below), whose sum is σ = 1611768792960. Its totient is φ = 1283445320800.

The previous prime is 1444480768613. The next prime is 1444480768693. The reversal of 1444480768687 is 7868670844441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444480768687 is a prime.

It is a super-2 number, since 2×1444480768687² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444480708687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6320389 + ... + 6544942.

It is an arithmetic number, because the mean of its divisors is an integer number (100735549560).

Almost surely, 2^{1444480768687} is an apocalyptic number.

1444480768687 is a deficient number, since it is larger than the sum of its proper divisors (167288024273).

1444480768687 is a wasteful number, since it uses less digits than its factorization.

1444480768687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12865574.

The product of its (nonzero) digits is 231211008, while the sum is 67.

The spelling of 1444480768687 in words is "one trillion, four hundred forty-four billion, four hundred eighty million, seven hundred sixty-eight thousand, six hundred eighty-seven".