1312634345748 has 96 divisors (see below), whose sum is σ = 3538605450240. Its totient is φ = 374284131840.

The previous prime is 1312634345747. The next prime is 1312634345783. The reversal of 1312634345748 is 8475434362131.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 1312634345748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312634345747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10075915 + ... + 10205357.

It is an arithmetic number, because the mean of its divisors is an integer number (36860473440).

Almost surely, 2^{1312634345748} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312634345748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1769302725120).

1312634345748 is an abundant number, since it is smaller than the sum of its proper divisors (2225971104492).

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

1312634345748 is a wasteful number, since it uses less digits than its factorization.

1312634345748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133997 (or 133995 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 51.

The spelling of 1312634345748 in words is "one trillion, three hundred twelve billion, six hundred thirty-four million, three hundred forty-five thousand, seven hundred forty-eight".