1828281919123 has 8 divisors (see below), whose sum is σ = 1994546131056. Its totient is φ = 1662027168000.

The previous prime is 1828281919111. The next prime is 1828281919127. The reversal of 1828281919123 is 3219191828281.

It is a happy number.

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 1828281919123 - 2⁵ = 1828281919091 is a prime.

It is a super-3 number, since 3×1828281919123³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1828281919127) 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 7 ways as a sum of consecutive naturals, for example, 1958086 + ... + 2736907.

It is an arithmetic number, because the mean of its divisors is an integer number (249318266382).

Almost surely, 2^{1828281919123} is an apocalyptic number.

1828281919123 is a deficient number, since it is larger than the sum of its proper divisors (166264211933).

1828281919123 is a wasteful number, since it uses less digits than its factorization.

1828281919123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4730405.

The product of its digits is 995328, while the sum is 55.

The spelling of 1828281919123 in words is "one trillion, eight hundred twenty-eight billion, two hundred eighty-one million, nine hundred nineteen thousand, one hundred twenty-three".