6700197648677 has 12 divisors (see below), whose sum is σ = 7256015445924. Its totient is φ = 6184139869440.

The previous prime is 6700197648673. The next prime is 6700197648751. The reversal of 6700197648677 is 7768467910076.

It is a Cunningham number, because it is equal to 2588474²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 3322067603716 + 3378130044961 = 1822654^2 + 1837969^2 .

It is not a de Polignac number, because 6700197648677 - 2² = 6700197648673 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6700197648673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 511988 + ... + 3696285.

It is an arithmetic number, because the mean of its divisors is an integer number (604667953827).

Almost surely, 2^{6700197648677} is an apocalyptic number.

It is an amenable number.

6700197648677 is a deficient number, since it is larger than the sum of its proper divisors (555817797247).

6700197648677 is a wasteful number, since it uses less digits than its factorization.

6700197648677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4217720 (or 4217707 counting only the distinct ones).

The product of its (nonzero) digits is 149361408, while the sum is 68.

The spelling of 6700197648677 in words is "six trillion, seven hundred billion, one hundred ninety-seven million, six hundred forty-eight thousand, six hundred seventy-seven".