32397634657 has 2 divisors, whose sum is σ = 32397634658. Its totient is φ = 32397634656.

The previous prime is 32397634649. The next prime is 32397634681. The reversal of 32397634657 is 75643679323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28747541601 + 3650093056 = 169551^2 + 60416^2 .

It is a cyclic number.

It is not a de Polignac number, because 32397634657 - 2³ = 32397634649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32397634598 and 32397634607.

It is not a weakly prime, because it can be changed into another prime (32397634697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16198817328 + 16198817329.

It is an arithmetic number, because the mean of its divisors is an integer number (16198817329).

Almost surely, 2^32397634657 is an apocalyptic number.

It is an amenable number.

32397634657 is a deficient number, since it is larger than the sum of its proper divisors (1).

32397634657 is an equidigital number, since it uses as much as digits as its factorization.

32397634657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17146080, while the sum is 55.

The spelling of 32397634657 in words is "thirty-two billion, three hundred ninety-seven million, six hundred thirty-four thousand, six hundred fifty-seven".