2312829729869 has 4 divisors (see below), whose sum is σ = 2312837693244. Its totient is φ = 2312821766496.

The previous prime is 2312829729857. The next prime is 2312829729919. The reversal of 2312829729869 is 9689279282132.

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 515050228900 + 1797779500969 = 717670^2 + 1340813^2 .

It is a cyclic number.

It is not a de Polignac number, because 2312829729869 - 2⁴⁰ = 1213318102093 is a prime.

It is a super-2 number, since 2×2312829729869² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2312829729799 and 2312829729808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312829729839) 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, 3528872 + ... + 4132625.

It is an arithmetic number, because the mean of its divisors is an integer number (578209423311).

Almost surely, 2^{2312829729869} is an apocalyptic number.

It is an amenable number.

2312829729869 is a deficient number, since it is larger than the sum of its proper divisors (7963375).

2312829729869 is an equidigital number, since it uses as much as digits as its factorization.

2312829729869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7963374.

The product of its digits is 94058496, while the sum is 68.

The spelling of 2312829729869 in words is "two trillion, three hundred twelve billion, eight hundred twenty-nine million, seven hundred twenty-nine thousand, eight hundred sixty-nine".