1312718527512 has 768 divisors, whose sum is σ = 4406466355200. Its totient is φ = 345219563520.

The previous prime is 1312718527493. The next prime is 1312718527517. The reversal of 1312718527512 is 2157258172131.

1312718527512 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 71 + 8 + 527 + 51 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312718527517) 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 191 ways as a sum of consecutive naturals, for example, 4739055918 + ... + 4739056194.

It is an arithmetic number, because the mean of its divisors is an integer number (5737586400).

Almost surely, 2^{1312718527512} is an apocalyptic number.

1312718527512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312718527512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2203233177600).

1312718527512 is an abundant number, since it is smaller than the sum of its proper divisors (3093747827688).

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

1312718527512 is a wasteful number, since it uses less digits than its factorization.

1312718527512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 529 counting only the distinct ones).

The product of its digits is 235200, while the sum is 45.

The spelling of 1312718527512 in words is "one trillion, three hundred twelve billion, seven hundred eighteen million, five hundred twenty-seven thousand, five hundred twelve".