111136677779 has 2 divisors, whose sum is σ = 111136677780. Its totient is φ = 111136677778.

The previous prime is 111136677733. The next prime is 111136677781. The reversal of 111136677779 is 977776631111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111136677779 is a prime.

It is a super-2 number, since 2×111136677779² (a number of 23 digits) contains 22 as substring.

Together with 111136677781, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (111136677719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55568338889 + 55568338890.

It is an arithmetic number, because the mean of its divisors is an integer number (55568338890).

Almost surely, 2^111136677779 is an apocalyptic number.

111136677779 is a deficient number, since it is larger than the sum of its proper divisors (1).

111136677779 is an equidigital number, since it uses as much as digits as its factorization.

111136677779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2333772, while the sum is 56.

The spelling of 111136677779 in words is "one hundred eleven billion, one hundred thirty-six million, six hundred seventy-seven thousand, seven hundred seventy-nine".