115563335779 has 2 divisors, whose sum is σ = 115563335780. Its totient is φ = 115563335778.

The previous prime is 115563335773. The next prime is 115563335809. The reversal of 115563335779 is 977533365511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115563335779 - 2⁵ = 115563335747 is a prime.

It is a super-3 number, since 3×115563335779³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (115563335773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57781667889 + 57781667890.

It is an arithmetic number, because the mean of its divisors is an integer number (57781667890).

Almost surely, 2^115563335779 is an apocalyptic number.

115563335779 is a deficient number, since it is larger than the sum of its proper divisors (1).

115563335779 is an equidigital number, since it uses as much as digits as its factorization.

115563335779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8930250, while the sum is 55.

The spelling of 115563335779 in words is "one hundred fifteen billion, five hundred sixty-three million, three hundred thirty-five thousand, seven hundred seventy-nine".