20452466287229 has 2 divisors, whose sum is σ = 20452466287230. Its totient is φ = 20452466287228.

The previous prime is 20452466287189. The next prime is 20452466287237. The reversal of 20452466287229 is 92278266425402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16538292892900 + 3914173394329 = 4066730^2 + 1978427^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20452466287229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20452466287129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10226233143614 + 10226233143615.

It is an arithmetic number, because the mean of its divisors is an integer number (10226233143615).

Almost surely, 2^{20452466287229} is an apocalyptic number.

It is an amenable number.

20452466287229 is a deficient number, since it is larger than the sum of its proper divisors (1).

20452466287229 is an equidigital number, since it uses as much as digits as its factorization.

20452466287229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46448640, while the sum is 59.

The spelling of 20452466287229 in words is "twenty trillion, four hundred fifty-two billion, four hundred sixty-six million, two hundred eighty-seven thousand, two hundred twenty-nine".