1317187236992 has 256 divisors, whose sum is σ = 3194261049600. Its totient is φ = 533643264000.

The previous prime is 1317187236991. The next prime is 1317187237019. The reversal of 1317187236992 is 2996327817131.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1317187236991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55591484 + ... + 55615172.

It is an arithmetic number, because the mean of its divisors is an integer number (12477582225).

Almost surely, 2^{1317187236992} 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 1317187236992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1597130524800).

1317187236992 is an abundant number, since it is smaller than the sum of its proper divisors (1877073812608).

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

1317187236992 is a wasteful number, since it uses less digits than its factorization.

1317187236992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23855 (or 23843 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 59.

The spelling of 1317187236992 in words is "one trillion, three hundred seventeen billion, one hundred eighty-seven million, two hundred thirty-six thousand, nine hundred ninety-two".