1839453972459 has 8 divisors (see below), whose sum is σ = 2487149033472. Its totient is φ = 1209030779880.

The previous prime is 1839453972451. The next prime is 1839453972481. The reversal of 1839453972459 is 9542793549381.

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

It is not a de Polignac number, because 1839453972459 - 2³ = 1839453972451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1839453972393 and 1839453972402.

It is not an unprimeable number, because it can be changed into a prime (1839453972451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4317966859 + ... + 4317967284.

It is an arithmetic number, because the mean of its divisors is an integer number (310893629184).

Almost surely, 2^{1839453972459} is an apocalyptic number.

1839453972459 is a deficient number, since it is larger than the sum of its proper divisors (647695061013).

1839453972459 is an equidigital number, since it uses as much as digits as its factorization.

1839453972459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8635934217.

The product of its digits is 293932800, while the sum is 69.

The spelling of 1839453972459 in words is "one trillion, eight hundred thirty-nine billion, four hundred fifty-three million, nine hundred seventy-two thousand, four hundred fifty-nine".