1313780353648 has 120 divisors (see below), whose sum is σ = 3069910596480. Its totient is φ = 542504148480.

The previous prime is 1313780353631. The next prime is 1313780353673. The reversal of 1313780353648 is 8463530873131.

It is a junction number, because it is equal to n+sod(n) for n = 1313780353595 and 1313780353604.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5447590 + ... + 5683642.

It is an arithmetic number, because the mean of its divisors is an integer number (25582588304).

Almost surely, 2^{1313780353648} 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 1313780353648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1534955298240).

1313780353648 is an abundant number, since it is smaller than the sum of its proper divisors (1756130242832).

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

1313780353648 is a wasteful number, since it uses less digits than its factorization.

1313780353648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236335 (or 236322 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 1313780353648 in words is "one trillion, three hundred thirteen billion, seven hundred eighty million, three hundred fifty-three thousand, six hundred forty-eight".