1316409717940 has 12 divisors (see below), whose sum is σ = 2764460407716. Its totient is φ = 526563887168.

The previous prime is 1316409717923. The next prime is 1316409717949. The reversal of 1316409717940 is 497179046131.

It can be written as a sum of positive squares in 2 ways, for example, as 920874382884 + 395535335056 = 959622^2 + 628916^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316409717949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32910242929 + ... + 32910242968.

It is an arithmetic number, because the mean of its divisors is an integer number (230371700643).

Almost surely, 2^{1316409717940} is an apocalyptic number.

1316409717940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1316409717940 is an abundant number, since it is smaller than the sum of its proper divisors (1448050689776).

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

1316409717940 is a wasteful number, since it uses less digits than its factorization.

1316409717940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65820485906 (or 65820485904 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 1316409717940 in words is "one trillion, three hundred sixteen billion, four hundred nine million, seven hundred seventeen thousand, nine hundred forty".