1313692979788 has 72 divisors (see below), whose sum is σ = 2750229517392. Its totient is φ = 547225451136.

The previous prime is 1313692979719. The next prime is 1313692979803. The reversal of 1313692979788 is 8879792963131.

It is a self number, because there is not a number n which added to its sum of digits gives 1313692979788.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 520570 + ... + 1702462.

It is an arithmetic number, because the mean of its divisors is an integer number (38197632186).

Almost surely, 2^{1313692979788} 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 1313692979788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1375114758696).

1313692979788 is an abundant number, since it is smaller than the sum of its proper divisors (1436536537604).

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

1313692979788 is a wasteful number, since it uses less digits than its factorization.

1313692979788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182071 (or 1182062 counting only the distinct ones).

The product of its digits is 246903552, while the sum is 73.

The spelling of 1313692979788 in words is "one trillion, three hundred thirteen billion, six hundred ninety-two million, nine hundred seventy-nine thousand, seven hundred eighty-eight".