1369312181819 has 16 divisors (see below), whose sum is σ = 1504341235200. Its totient is φ = 1240600971456.

The previous prime is 1369312181791. The next prime is 1369312181821. The reversal of 1369312181819 is 9181812139631.

It is a de Polignac number, because none of the positive numbers 2^k-1369312181819 is a prime.

It is a super-2 number, since 2×1369312181819² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1369312181869) 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, 1975562 + ... + 2577104.

It is an arithmetic number, because the mean of its divisors is an integer number (94021327200).

Almost surely, 2^{1369312181819} is an apocalyptic number.

1369312181819 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1369312181819 is a deficient number, since it is larger than the sum of its proper divisors (135029053381).

1369312181819 is a wasteful number, since it uses less digits than its factorization.

1369312181819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606794.

The product of its digits is 559872, while the sum is 53.

The spelling of 1369312181819 in words is "one trillion, three hundred sixty-nine billion, three hundred twelve million, one hundred eighty-one thousand, eight hundred nineteen".