1311446320464 has 40 divisors (see below), whose sum is σ = 3871889137600. Its totient is φ = 374698948608.

The previous prime is 1311446320433. The next prime is 1311446320487. The reversal of 1311446320464 is 4640236441131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1951556689 + ... + 1951557360.

It is an arithmetic number, because the mean of its divisors is an integer number (96797228440).

Almost surely, 2^{1311446320464} is an apocalyptic number.

1311446320464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1311446320464 is an abundant number, since it is smaller than the sum of its proper divisors (2560442817136).

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

1311446320464 is a wasteful number, since it uses less digits than its factorization.

1311446320464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903114067 (or 3903114061 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 1311446320464 in words is "one trillion, three hundred eleven billion, four hundred forty-six million, three hundred twenty thousand, four hundred sixty-four".