1830009108521 has 4 divisors (see below), whose sum is σ = 1996373572944. Its totient is φ = 1663644644100.

The previous prime is 1830009108481. The next prime is 1830009108547. The reversal of 1830009108521 is 1258019000381.

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 1830009108521 - 2⁶ = 1830009108457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1830005108521) 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, 83182232195 + ... + 83182232216.

It is an arithmetic number, because the mean of its divisors is an integer number (499093393236).

Almost surely, 2^{1830009108521} is an apocalyptic number.

1830009108521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1830009108521 is a deficient number, since it is larger than the sum of its proper divisors (166364464423).

1830009108521 is a wasteful number, since it uses less digits than its factorization.

1830009108521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166364464422.

The product of its (nonzero) digits is 17280, while the sum is 38.

The spelling of 1830009108521 in words is "one trillion, eight hundred thirty billion, nine million, one hundred eight thousand, five hundred twenty-one".