6198516677 has 2 divisors, whose sum is σ = 6198516678. Its totient is φ = 6198516676.

The previous prime is 6198516631. The next prime is 6198516683. The reversal of 6198516677 is 7766158916.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3213642721 + 2984873956 = 56689^2 + 54634^2 .

It is a cyclic number.

It is not a de Polignac number, because 6198516677 - 2⁶ = 6198516613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6198516977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3099258338 + 3099258339.

It is an arithmetic number, because the mean of its divisors is an integer number (3099258339).

Almost surely, 2^6198516677 is an apocalyptic number.

It is an amenable number.

6198516677 is a deficient number, since it is larger than the sum of its proper divisors (1).

6198516677 is an equidigital number, since it uses as much as digits as its factorization.

6198516677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 56.

The square root of 6198516677 is about 78730.6590662113. The cubic root of 6198516677 is about 1836.9440330245.

The spelling of 6198516677 in words is "six billion, one hundred ninety-eight million, five hundred sixteen thousand, six hundred seventy-seven".