6613077857 has 2 divisors, whose sum is σ = 6613077858. Its totient is φ = 6613077856.

The previous prime is 6613077827. The next prime is 6613077859. The reversal of 6613077857 is 7587703166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5193220096 + 1419857761 = 72064^2 + 37681^2 .

It is a cyclic number.

It is not a de Polignac number, because 6613077857 - 2¹⁶ = 6613012321 is a prime.

Together with 6613077859, 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 (6613077859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3306538928 + 3306538929.

It is an arithmetic number, because the mean of its divisors is an integer number (3306538929).

Almost surely, 2^6613077857 is an apocalyptic number.

It is an amenable number.

6613077857 is a deficient number, since it is larger than the sum of its proper divisors (1).

6613077857 is an equidigital number, since it uses as much as digits as its factorization.

6613077857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1481760, while the sum is 50.

The square root of 6613077857 is about 81320.8328597291. The cubic root of 6613077857 is about 1877.0155848804.

The spelling of 6613077857 in words is "six billion, six hundred thirteen million, seventy-seven thousand, eight hundred fifty-seven".