32297840657 has 2 divisors, whose sum is σ = 32297840658. Its totient is φ = 32297840656.

The previous prime is 32297840611. The next prime is 32297840671. The reversal of 32297840657 is 75604879223.

It is a Cunningham number, because it is equal to 179716²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32297840656 + 1 = 179716^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 32297840657 - 2⁸ = 32297840401 is a prime.

It is a super-2 number, since 2×32297840657² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32297840599 and 32297840608.

It is not a weakly prime, because it can be changed into another prime (32297842657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16148920328 + 16148920329.

It is an arithmetic number, because the mean of its divisors is an integer number (16148920329).

Almost surely, 2^32297840657 is an apocalyptic number.

It is an amenable number.

32297840657 is a deficient number, since it is larger than the sum of its proper divisors (1).

32297840657 is an equidigital number, since it uses as much as digits as its factorization.

32297840657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 32297840657 in words is "thirty-two billion, two hundred ninety-seven million, eight hundred forty thousand, six hundred fifty-seven".