452427155621 has 16 divisors (see below), whose sum is σ = 544360172160. Its totient is φ = 367325798400.

The previous prime is 452427155603. The next prime is 452427155627. The reversal of 452427155621 is 126551724254.

It is a cyclic number.

It is not a de Polignac number, because 452427155621 - 2¹⁴ = 452427139237 is a prime.

It is a super-2 number, since 2×452427155621² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452427155627) 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 15 ways as a sum of consecutive naturals, for example, 574421 + ... + 1111221.

It is an arithmetic number, because the mean of its divisors is an integer number (34022510760).

Almost surely, 2^452427155621 is an apocalyptic number.

It is an amenable number.

452427155621 is a deficient number, since it is larger than the sum of its proper divisors (91933016539).

452427155621 is a wasteful number, since it uses less digits than its factorization.

452427155621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543164.

The product of its digits is 672000, while the sum is 44.

Adding to 452427155621 its reverse (126551724254), we get a palindrome (578978879875).

The spelling of 452427155621 in words is "four hundred fifty-two billion, four hundred twenty-seven million, one hundred fifty-five thousand, six hundred twenty-one".