1317561313760 has 48 divisors (see below), whose sum is σ = 3155378886576. Its totient is φ = 519805006848.

The previous prime is 1317561313699. The next prime is 1317561313787. The reversal of 1317561313760 is 673131657131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56390774 + ... + 56414133.

It is an arithmetic number, because the mean of its divisors is an integer number (65737060137).

Almost surely, 2^{1317561313760} is an apocalyptic number.

1317561313760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1317561313760 is an abundant number, since it is smaller than the sum of its proper divisors (1837817572816).

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

1317561313760 is a wasteful number, since it uses less digits than its factorization.

1317561313760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112804995 (or 112804987 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 44.

The spelling of 1317561313760 in words is "one trillion, three hundred seventeen billion, five hundred sixty-one million, three hundred thirteen thousand, seven hundred sixty".