1828920085229 has 4 divisors (see below), whose sum is σ = 1828950801120. Its totient is φ = 1828889369340.

The previous prime is 1828920085199. The next prime is 1828920085247. The reversal of 1828920085229 is 9225800298281.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1828920085229 - 2²⁰ = 1828919036653 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 (1828920085249) 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, 15268457 + ... + 15387774.

It is an arithmetic number, because the mean of its divisors is an integer number (457237700280).

Almost surely, 2^{1828920085229} is an apocalyptic number.

It is an amenable number.

1828920085229 is a deficient number, since it is larger than the sum of its proper divisors (30715891).

1828920085229 is an equidigital number, since it uses as much as digits as its factorization.

1828920085229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30715890.

The product of its (nonzero) digits is 3317760, while the sum is 56.

The spelling of 1828920085229 in words is "one trillion, eight hundred twenty-eight billion, nine hundred twenty million, eighty-five thousand, two hundred twenty-nine".