1830121748209 has 8 divisors (see below), whose sum is σ = 1856529868032. Its totient is φ = 1803876140400.

The previous prime is 1830121748201. The next prime is 1830121748233. The reversal of 1830121748209 is 9028471210381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1830121748209 - 2³ = 1830121748201 is a prime.

It is a super-2 number, since 2×1830121748209² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1830121748201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40605319 + ... + 40650364.

It is an arithmetic number, because the mean of its divisors is an integer number (232066233504).

Almost surely, 2^{1830121748209} is an apocalyptic number.

It is an amenable number.

1830121748209 is a deficient number, since it is larger than the sum of its proper divisors (26408119823).

1830121748209 is a wasteful number, since it uses less digits than its factorization.

1830121748209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81256007.

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 1830121748209 in words is "one trillion, eight hundred thirty billion, one hundred twenty-one million, seven hundred forty-eight thousand, two hundred nine".