452391021439 has 8 divisors (see below), whose sum is σ = 518458475520. Its totient is φ = 386683608696.

The previous prime is 452391021437. The next prime is 452391021443. The reversal of 452391021439 is 934120193254.

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

It is not a de Polignac number, because 452391021439 - 2¹ = 452391021437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 452391021395 and 452391021404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452391021437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90007639 + ... + 90012664.

It is an arithmetic number, because the mean of its divisors is an integer number (64807309440).

Almost surely, 2^452391021439 is an apocalyptic number.

452391021439 is a deficient number, since it is larger than the sum of its proper divisors (66067454081).

452391021439 is a wasteful number, since it uses less digits than its factorization.

452391021439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180020669.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 452391021439 in words is "four hundred fifty-two billion, three hundred ninety-one million, twenty-one thousand, four hundred thirty-nine".