1311974156382 has 8 divisors (see below), whose sum is σ = 2623948312776. Its totient is φ = 437324718792.

The previous prime is 1311974156267. The next prime is 1311974156453. The reversal of 1311974156382 is 2836514791131.

It is a sphenic number, since it is the product of 3 distinct primes.

1311974156382 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109331179693 + ... + 109331179704.

It is an arithmetic number, because the mean of its divisors is an integer number (327993539097).

Almost surely, 2^{1311974156382} is an apocalyptic number.

1311974156382 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1311974156382 is a wasteful number, since it uses less digits than its factorization.

1311974156382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218662359402.

The product of its digits is 1088640, while the sum is 51.

The spelling of 1311974156382 in words is "one trillion, three hundred eleven billion, nine hundred seventy-four million, one hundred fifty-six thousand, three hundred eighty-two".