6117777091 has 2 divisors, whose sum is σ = 6117777092. Its totient is φ = 6117777090.

The previous prime is 6117777089. The next prime is 6117777139. The reversal of 6117777091 is 1907777116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6117777091 - 2¹ = 6117777089 is a prime.

Together with 6117777089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6117717091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3058888545 + 3058888546.

It is an arithmetic number, because the mean of its divisors is an integer number (3058888546).

Almost surely, 2^6117777091 is an apocalyptic number.

6117777091 is a deficient number, since it is larger than the sum of its proper divisors (1).

6117777091 is an equidigital number, since it uses as much as digits as its factorization.

6117777091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129654, while the sum is 46.

The square root of 6117777091 is about 78216.2201272856. The cubic root of 6117777091 is about 1828.9333658011.

The spelling of 6117777091 in words is "six billion, one hundred seventeen million, seven hundred seventy-seven thousand, ninety-one".