1391344316380 has 96 divisors (see below), whose sum is σ = 3047098824000. Its totient is φ = 532991047680.

The previous prime is 1391344316377. The next prime is 1391344316419. The reversal of 1391344316380 is 836134431931.

It is a self number, because there is not a number n which added to its sum of digits gives 1391344316380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268130826 + ... + 268136014.

It is an arithmetic number, because the mean of its divisors is an integer number (31740612750).

Almost surely, 2^{1391344316380} is an apocalyptic number.

1391344316380 is a gapful number since it is divisible by the number (10) 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 1391344316380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1523549412000).

1391344316380 is an abundant number, since it is smaller than the sum of its proper divisors (1655754507620).

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

1391344316380 is a wasteful number, since it uses less digits than its factorization.

1391344316380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8887 (or 8885 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 1391344316380 in words is "one trillion, three hundred ninety-one billion, three hundred forty-four million, three hundred sixteen thousand, three hundred eighty".