6779946091 has 2 divisors, whose sum is σ = 6779946092. Its totient is φ = 6779946090.

The previous prime is 6779946071. The next prime is 6779946097. The reversal of 6779946091 is 1906499776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6779946091 - 2¹¹ = 6779944043 is a prime.

It is not a weakly prime, because it can be changed into another prime (6779946097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3389973045 + 3389973046.

It is an arithmetic number, because the mean of its divisors is an integer number (3389973046).

Almost surely, 2^6779946091 is an apocalyptic number.

6779946091 is a deficient number, since it is larger than the sum of its proper divisors (1).

6779946091 is an equidigital number, since it uses as much as digits as its factorization.

6779946091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5143824, while the sum is 58.

The square root of 6779946091 is about 82340.4280472236. The cubic root of 6779946091 is about 1892.6722453684.

The spelling of 6779946091 in words is "six billion, seven hundred seventy-nine million, nine hundred forty-six thousand, ninety-one".