32378457413 has 2 divisors, whose sum is σ = 32378457414. Its totient is φ = 32378457412.

The previous prime is 32378457379. The next prime is 32378457443. The reversal of 32378457413 is 31475487323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26445914884 + 5932542529 = 162622^2 + 77023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32378457413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32378457443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16189228706 + 16189228707.

It is an arithmetic number, because the mean of its divisors is an integer number (16189228707).

Almost surely, 2^32378457413 is an apocalyptic number.

It is an amenable number.

32378457413 is a deficient number, since it is larger than the sum of its proper divisors (1).

32378457413 is an equidigital number, since it uses as much as digits as its factorization.

32378457413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 47.

The spelling of 32378457413 in words is "thirty-two billion, three hundred seventy-eight million, four hundred fifty-seven thousand, four hundred thirteen".