1831608212813 has 8 divisors (see below), whose sum is σ = 1842591329208. Its totient is φ = 1820657833984.

The previous prime is 1831608212773. The next prime is 1831608212851. The reversal of 1831608212813 is 3182128061381.

It can be written as a sum of positive squares in 4 ways, for example, as 25479182884 + 1806129029929 = 159622^2 + 1343923^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1831608212813 - 2²⁸ = 1831339777357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1831601212813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8072156 + ... + 8295957.

It is an arithmetic number, because the mean of its divisors is an integer number (230323916151).

Almost surely, 2^{1831608212813} is an apocalyptic number.

It is an amenable number.

1831608212813 is a deficient number, since it is larger than the sum of its proper divisors (10983116395).

1831608212813 is a wasteful number, since it uses less digits than its factorization.

1831608212813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16368783.

The product of its (nonzero) digits is 110592, while the sum is 44.

The spelling of 1831608212813 in words is "one trillion, eight hundred thirty-one billion, six hundred eight million, two hundred twelve thousand, eight hundred thirteen".