1828109969 has 4 divisors (see below), whose sum is σ = 2089268544. Its totient is φ = 1566951396.

The previous prime is 1828109963. The next prime is 1828109993. The reversal of 1828109969 is 9699018281.

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 a de Polignac number, because none of the positive numbers 2^k-1828109969 is a prime.

It is a super-2 number, since 2×1828109969² = 6683972117514361922, which contains 22 as substring.

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 1828109969.

It is not an unprimeable number, because it can be changed into a prime (1828109963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130579277 + ... + 130579290.

It is an arithmetic number, because the mean of its divisors is an integer number (522317136).

Almost surely, 2^1828109969 is an apocalyptic number.

It is an amenable number.

1828109969 is a deficient number, since it is larger than the sum of its proper divisors (261158575).

1828109969 is an equidigital number, since it uses as much as digits as its factorization.

1828109969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261158574.

The product of its (nonzero) digits is 559872, while the sum is 53.

The square root of 1828109969 is about 42756.4026667352. The cubic root of 1828109969 is about 1222.7399604513.

The spelling of 1828109969 in words is "one billion, eight hundred twenty-eight million, one hundred nine thousand, nine hundred sixty-nine".