1828940553289 has 4 divisors (see below), whose sum is σ = 1829031924420. Its totient is φ = 1828849182160.

The previous prime is 1828940553263. The next prime is 1828940553371. The reversal of 1828940553289 is 9823550498281.

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 37197679689 + 1791742873600 = 192867^2 + 1338560^2 .

It is a cyclic number.

It is not a de Polignac number, because 1828940553289 - 2²⁹ = 1828403682377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1828940553289.

It is not an unprimeable number, because it can be changed into a prime (1828940553889) 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, 45655534 + ... + 45695575.

It is an arithmetic number, because the mean of its divisors is an integer number (457257981105).

Almost surely, 2^{1828940553289} is an apocalyptic number.

It is an amenable number.

1828940553289 is a deficient number, since it is larger than the sum of its proper divisors (91371131).

1828940553289 is an equidigital number, since it uses as much as digits as its factorization.

1828940553289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91371130.

The product of its (nonzero) digits is 49766400, while the sum is 64.

The spelling of 1828940553289 in words is "one trillion, eight hundred twenty-eight billion, nine hundred forty million, five hundred fifty-three thousand, two hundred eighty-nine".