20452864433 has 2 divisors, whose sum is σ = 20452864434. Its totient is φ = 20452864432.

The previous prime is 20452864429. The next prime is 20452864483. The reversal of 20452864433 is 33446825402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18667210384 + 1785654049 = 136628^2 + 42257^2 .

It is a cyclic number.

It is not a de Polignac number, because 20452864433 - 2² = 20452864429 is a prime.

It is a super-2 number, since 2×20452864433² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20452864483) 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 as a sum of consecutive naturals, namely, 10226432216 + 10226432217.

It is an arithmetic number, because the mean of its divisors is an integer number (10226432217).

Almost surely, 2^20452864433 is an apocalyptic number.

It is an amenable number.

20452864433 is a deficient number, since it is larger than the sum of its proper divisors (1).

20452864433 is an equidigital number, since it uses as much as digits as its factorization.

20452864433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 552960, while the sum is 41.

The spelling of 20452864433 in words is "twenty billion, four hundred fifty-two million, eight hundred sixty-four thousand, four hundred thirty-three".