32782507817 has 2 divisors, whose sum is σ = 32782507818. Its totient is φ = 32782507816.

The previous prime is 32782507733. The next prime is 32782507861. The reversal of 32782507817 is 71870528723.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23712612121 + 9069895696 = 153989^2 + 95236^2 .

It is a cyclic number.

It is not a de Polignac number, because 32782507817 - 2⁸ = 32782507561 is a prime.

It is a super-2 number, since 2×32782507817² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (32782507217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16391253908 + 16391253909.

It is an arithmetic number, because the mean of its divisors is an integer number (16391253909).

Almost surely, 2^32782507817 is an apocalyptic number.

It is an amenable number.

32782507817 is a deficient number, since it is larger than the sum of its proper divisors (1).

32782507817 is an equidigital number, since it uses as much as digits as its factorization.

32782507817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1317120, while the sum is 50.

The spelling of 32782507817 in words is "thirty-two billion, seven hundred eighty-two million, five hundred seven thousand, eight hundred seventeen".