1311646317882 has 16 divisors (see below), whose sum is σ = 2623312322400. Its totient is φ = 437212158192.

The previous prime is 1311646317881. The next prime is 1311646317899. The reversal of 1311646317882 is 2887136461131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1311646317881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130668 + ... + 1624920.

It is an arithmetic number, because the mean of its divisors is an integer number (163957020150).

Almost surely, 2^{1311646317882} is an apocalyptic number.

1311646317882 is an abundant number, since it is smaller than the sum of its proper divisors (1311666004518).

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

1311646317882 is a wasteful number, since it uses less digits than its factorization.

1311646317882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640557.

The product of its digits is 1161216, while the sum is 51.

The spelling of 1311646317882 in words is "one trillion, three hundred eleven billion, six hundred forty-six million, three hundred seventeen thousand, eight hundred eighty-two".