1317286641376 has 12 divisors (see below), whose sum is σ = 2593408075272. Its totient is φ = 658643320672.

The previous prime is 1317286641373. The next prime is 1317286641389. The reversal of 1317286641376 is 6731466827131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317286641371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20582603740 + ... + 20582603803.

It is an arithmetic number, because the mean of its divisors is an integer number (216117339606).

Almost surely, 2^{1317286641376} is an apocalyptic number.

1317286641376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1317286641376 is a deficient number, since it is larger than the sum of its proper divisors (1276121433896).

1317286641376 is an equidigital number, since it uses as much as digits as its factorization.

1317286641376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41165207553 (or 41165207545 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 55.

The spelling of 1317286641376 in words is "one trillion, three hundred seventeen billion, two hundred eighty-six million, six hundred forty-one thousand, three hundred seventy-six".