1369312181817 has 32 divisors (see below), whose sum is σ = 1964089171584. Its totient is φ = 845451340800.

The previous prime is 1369312181791. The next prime is 1369312181821. The reversal of 1369312181817 is 7181812139631.

It is not a de Polignac number, because 1369312181817 - 2⁸ = 1369312181561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 1369312181817.

It is not an unprimeable number, because it can be changed into a prime (1369312181717) 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, 3002467 + ... + 3428327.

It is an arithmetic number, because the mean of its divisors is an integer number (61377786612).

Almost surely, 2^{1369312181817} is an apocalyptic number.

1369312181817 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1369312181817 is a deficient number, since it is larger than the sum of its proper divisors (594776989767).

1369312181817 is a wasteful number, since it uses less digits than its factorization.

1369312181817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426889.

The product of its digits is 435456, while the sum is 51.

The spelling of 1369312181817 in words is "one trillion, three hundred sixty-nine billion, three hundred twelve million, one hundred eighty-one thousand, eight hundred seventeen".