452438780421 has 4 divisors (see below), whose sum is σ = 603251707232. Its totient is φ = 301625853612.

The previous prime is 452438780413. The next prime is 452438780459. The reversal of 452438780421 is 124087834254.

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 not a de Polignac number, because 452438780421 - 2³ = 452438780413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452438780401) 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, 75406463401 + ... + 75406463406.

It is an arithmetic number, because the mean of its divisors is an integer number (150812926808).

Almost surely, 2^452438780421 is an apocalyptic number.

It is an amenable number.

452438780421 is a deficient number, since it is larger than the sum of its proper divisors (150812926811).

452438780421 is a wasteful number, since it uses less digits than its factorization.

452438780421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150812926810.

The product of its (nonzero) digits is 1720320, while the sum is 48.

The spelling of 452438780421 in words is "four hundred fifty-two billion, four hundred thirty-eight million, seven hundred eighty thousand, four hundred twenty-one".