6632657897 has 2 divisors, whose sum is σ = 6632657898. Its totient is φ = 6632657896.

The previous prime is 6632657881. The next prime is 6632657963. The reversal of 6632657897 is 7987562366.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6626611216 + 6046681 = 81404^2 + 2459^2 .

It is a cyclic number.

It is not a de Polignac number, because 6632657897 - 2⁴ = 6632657881 is a prime.

It is not a weakly prime, because it can be changed into another prime (6632650897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3316328948 + 3316328949.

It is an arithmetic number, because the mean of its divisors is an integer number (3316328949).

Almost surely, 2^6632657897 is an apocalyptic number.

It is an amenable number.

6632657897 is a deficient number, since it is larger than the sum of its proper divisors (1).

6632657897 is an equidigital number, since it uses as much as digits as its factorization.

6632657897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22861440, while the sum is 59.

The square root of 6632657897 is about 81441.1314815800. The cubic root of 6632657897 is about 1878.8662525365.

The spelling of 6632657897 in words is "six billion, six hundred thirty-two million, six hundred fifty-seven thousand, eight hundred ninety-seven".