1369830216869 has 4 divisors (see below), whose sum is σ = 1370093195820. Its totient is φ = 1369567237920.

The previous prime is 1369830216863. The next prime is 1369830216907. The reversal of 1369830216869 is 9686120389631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1246672737025 + 123157479844 = 1116545^2 + 350938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1369830216869 is a prime.

It is a super-2 number, since 2×1369830216869² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1369830216863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131481662 + ... + 131492079.

It is an arithmetic number, because the mean of its divisors is an integer number (342523298955).

Almost surely, 2^{1369830216869} is an apocalyptic number.

It is an amenable number.

1369830216869 is a deficient number, since it is larger than the sum of its proper divisors (262978951).

1369830216869 is an equidigital number, since it uses as much as digits as its factorization.

1369830216869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262978950.

The product of its (nonzero) digits is 20155392, while the sum is 62.

The spelling of 1369830216869 in words is "one trillion, three hundred sixty-nine billion, eight hundred thirty million, two hundred sixteen thousand, eight hundred sixty-nine".