32445442457 has 2 divisors, whose sum is σ = 32445442458. Its totient is φ = 32445442456.

The previous prime is 32445442399. The next prime is 32445442459. The reversal of 32445442457 is 75424454423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27703605136 + 4741837321 = 166444^2 + 68861^2 .

It is an emirp because it is prime and its reverse (75424454423) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32445442457 - 2¹⁶ = 32445376921 is a prime.

Together with 32445442459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32445442459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16222721228 + 16222721229.

It is an arithmetic number, because the mean of its divisors is an integer number (16222721229).

Almost surely, 2^32445442457 is an apocalyptic number.

It is an amenable number.

32445442457 is a deficient number, since it is larger than the sum of its proper divisors (1).

32445442457 is an equidigital number, since it uses as much as digits as its factorization.

32445442457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2150400, while the sum is 44.

The spelling of 32445442457 in words is "thirty-two billion, four hundred forty-five million, four hundred forty-two thousand, four hundred fifty-seven".