6977218093 has 2 divisors, whose sum is σ = 6977218094. Its totient is φ = 6977218092.

The previous prime is 6977218069. The next prime is 6977218169. The reversal of 6977218093 is 3908127796.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4503349449 + 2473868644 = 67107^2 + 49738^2 .

It is a cyclic number.

It is not a de Polignac number, because 6977218093 - 2²⁹ = 6440347181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6977218093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6977318093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3488609046 + 3488609047.

It is an arithmetic number, because the mean of its divisors is an integer number (3488609047).

Almost surely, 2^6977218093 is an apocalyptic number.

It is an amenable number.

6977218093 is a deficient number, since it is larger than the sum of its proper divisors (1).

6977218093 is an equidigital number, since it uses as much as digits as its factorization.

6977218093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 6977218093 is about 83529.7437623270. The cubic root of 6977218093 is about 1910.8536787680.

The spelling of 6977218093 in words is "six billion, nine hundred seventy-seven million, two hundred eighteen thousand, ninety-three".