6477445697 has 2 divisors, whose sum is σ = 6477445698. Its totient is φ = 6477445696.

The previous prime is 6477445693. The next prime is 6477445699. The reversal of 6477445697 is 7965447746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6077605681 + 399840016 = 77959^2 + 19996^2 .

It is a cyclic number.

It is not a de Polignac number, because 6477445697 - 2² = 6477445693 is a prime.

Together with 6477445699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6477445693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3238722848 + 3238722849.

It is an arithmetic number, because the mean of its divisors is an integer number (3238722849).

Almost surely, 2^6477445697 is an apocalyptic number.

It is an amenable number.

6477445697 is a deficient number, since it is larger than the sum of its proper divisors (1).

6477445697 is an equidigital number, since it uses as much as digits as its factorization.

6477445697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35562240, while the sum is 59.

The square root of 6477445697 is about 80482.5800841399. The cubic root of 6477445697 is about 1864.0945080047.

The spelling of 6477445697 in words is "six billion, four hundred seventy-seven million, four hundred forty-five thousand, six hundred ninety-seven".