452636144921 has 2 divisors, whose sum is σ = 452636144922. Its totient is φ = 452636144920.

The previous prime is 452636144903. The next prime is 452636144929. The reversal of 452636144921 is 129441636254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 418077334921 + 34558810000 = 646589^2 + 185900^2 .

It is a cyclic number.

It is not a de Polignac number, because 452636144921 - 2¹⁴ = 452636128537 is a prime.

It is not a weakly prime, because it can be changed into another prime (452636144929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226318072460 + 226318072461.

It is an arithmetic number, because the mean of its divisors is an integer number (226318072461).

Almost surely, 2^452636144921 is an apocalyptic number.

It is an amenable number.

452636144921 is a deficient number, since it is larger than the sum of its proper divisors (1).

452636144921 is an equidigital number, since it uses as much as digits as its factorization.

452636144921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 47.

The spelling of 452636144921 in words is "four hundred fifty-two billion, six hundred thirty-six million, one hundred forty-four thousand, nine hundred twenty-one".