118194076587869 has 2 divisors, whose sum is σ = 118194076587870. Its totient is φ = 118194076587868.

The previous prime is 118194076587859. The next prime is 118194076588033. The reversal of 118194076587869 is 968785670491811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101879246925625 + 16314829662244 = 10093525^2 + 4039162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118194076587869 is a prime.

It is a super-2 number, since 2×118194076587869² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 118194076587793 and 118194076587802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118194076587859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59097038293934 + 59097038293935.

It is an arithmetic number, because the mean of its divisors is an integer number (59097038293935).

Almost surely, 2^{118194076587869} is an apocalyptic number.

It is an amenable number.

118194076587869 is a deficient number, since it is larger than the sum of its proper divisors (1).

118194076587869 is an equidigital number, since it uses as much as digits as its factorization.

118194076587869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1463132160, while the sum is 80.

The spelling of 118194076587869 in words is "one hundred eighteen trillion, one hundred ninety-four billion, seventy-six million, five hundred eighty-seven thousand, eight hundred sixty-nine".