1317478632285 has 16 divisors (see below), whose sum is σ = 2180654288640. Its totient is φ = 678425778240.

The previous prime is 1317478632233. The next prime is 1317478632287. The reversal of 1317478632285 is 5822368747131.

It is a happy number.

It is not a de Polignac number, because 1317478632285 - 2²⁸ = 1317210196829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317478632287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1514342821 + ... + 1514343690.

It is an arithmetic number, because the mean of its divisors is an integer number (136290893040).

Almost surely, 2^{1317478632285} is an apocalyptic number.

1317478632285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1317478632285 is a deficient number, since it is larger than the sum of its proper divisors (863175656355).

1317478632285 is a wasteful number, since it uses less digits than its factorization.

1317478632285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028686548.

The product of its digits is 13547520, while the sum is 57.

The spelling of 1317478632285 in words is "one trillion, three hundred seventeen billion, four hundred seventy-eight million, six hundred thirty-two thousand, two hundred eighty-five".