32378387849 has 2 divisors, whose sum is σ = 32378387850. Its totient is φ = 32378387848.

The previous prime is 32378387827. The next prime is 32378387891. The reversal of 32378387849 is 94878387323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24755875600 + 7622512249 = 157340^2 + 87307^2 .

It is an emirp because it is prime and its reverse (94878387323) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32378387849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32378387791 and 32378387800.

It is not a weakly prime, because it can be changed into another prime (32378386849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16189193924 + 16189193925.

It is an arithmetic number, because the mean of its divisors is an integer number (16189193925).

Almost surely, 2^32378387849 is an apocalyptic number.

It is an amenable number.

32378387849 is a deficient number, since it is larger than the sum of its proper divisors (1).

32378387849 is an equidigital number, since it uses as much as digits as its factorization.

32378387849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48771072, while the sum is 62.

The spelling of 32378387849 in words is "thirty-two billion, three hundred seventy-eight million, three hundred eighty-seven thousand, eight hundred forty-nine".