115198167779 has 2 divisors, whose sum is σ = 115198167780. Its totient is φ = 115198167778.

The previous prime is 115198167713. The next prime is 115198167811. The reversal of 115198167779 is 977761891511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115198167779 is a prime.

It is not a weakly prime, because it can be changed into another prime (115198167079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57599083889 + 57599083890.

It is an arithmetic number, because the mean of its divisors is an integer number (57599083890).

Almost surely, 2^115198167779 is an apocalyptic number.

115198167779 is a deficient number, since it is larger than the sum of its proper divisors (1).

115198167779 is an equidigital number, since it uses as much as digits as its factorization.

115198167779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6667920, while the sum is 62.

The spelling of 115198167779 in words is "one hundred fifteen billion, one hundred ninety-eight million, one hundred sixty-seven thousand, seven hundred seventy-nine".