6667835592949 has 2 divisors, whose sum is σ = 6667835592950. Its totient is φ = 6667835592948.

The previous prime is 6667835592947. The next prime is 6667835592991. The reversal of 6667835592949 is 9492955387666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4230911658724 + 2436923934225 = 2056918^2 + 1561065^2 .

It is a cyclic number.

It is not a de Polignac number, because 6667835592949 - 2¹ = 6667835592947 is a prime.

Together with 6667835592947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6667835592947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333917796474 + 3333917796475.

It is an arithmetic number, because the mean of its divisors is an integer number (3333917796475).

Almost surely, 2^{6667835592949} is an apocalyptic number.

It is an amenable number.

6667835592949 is a deficient number, since it is larger than the sum of its proper divisors (1).

6667835592949 is an equidigital number, since it uses as much as digits as its factorization.

6667835592949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5290790400, while the sum is 79.

The spelling of 6667835592949 in words is "six trillion, six hundred sixty-seven billion, eight hundred thirty-five million, five hundred ninety-two thousand, nine hundred forty-nine".