1311444602645 has 16 divisors (see below), whose sum is σ = 1580309015040. Its totient is φ = 1044773640000.

The previous prime is 1311444602579. The next prime is 1311444602647. The reversal of 1311444602645 is 5462064441131.

It is not a de Polignac number, because 1311444602645 - 2³² = 1307149635349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311444602647) 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, 6564380 + ... + 6761210.

It is an arithmetic number, because the mean of its divisors is an integer number (98769313440).

Almost surely, 2^{1311444602645} is an apocalyptic number.

It is an amenable number.

1311444602645 is a deficient number, since it is larger than the sum of its proper divisors (268864412395).

1311444602645 is a wasteful number, since it uses less digits than its factorization.

1311444602645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202396.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 1311444602645 in words is "one trillion, three hundred eleven billion, four hundred forty-four million, six hundred two thousand, six hundred forty-five".