20132442440449 has 2 divisors, whose sum is σ = 20132442440450. Its totient is φ = 20132442440448.

The previous prime is 20132442440419. The next prime is 20132442440477. The reversal of 20132442440449 is 94404424423102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12276838684224 + 7855603756225 = 3503832^2 + 2802785^2 .

It is a cyclic number.

It is not a de Polignac number, because 20132442440449 - 2⁹ = 20132442439937 is a prime.

It is a super-2 number, since 2×20132442440449² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20132442440419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066221220224 + 10066221220225.

It is an arithmetic number, because the mean of its divisors is an integer number (10066221220225).

Almost surely, 2^{20132442440449} is an apocalyptic number.

It is an amenable number.

20132442440449 is a deficient number, since it is larger than the sum of its proper divisors (1).

20132442440449 is an equidigital number, since it uses as much as digits as its factorization.

20132442440449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 884736, while the sum is 43.

The spelling of 20132442440449 in words is "twenty trillion, one hundred thirty-two billion, four hundred forty-two million, four hundred forty thousand, four hundred forty-nine".