118364234881 has 2 divisors, whose sum is σ = 118364234882. Its totient is φ = 118364234880.

The previous prime is 118364234749. The next prime is 118364234893. The reversal of 118364234881 is 188432463811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100625990656 + 17738244225 = 317216^2 + 133185^2 .

It is a cyclic number.

It is not a de Polignac number, because 118364234881 - 2¹⁹ = 118363710593 is a prime.

It is a super-2 number, since 2×118364234881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (118364234381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59182117440 + 59182117441.

It is an arithmetic number, because the mean of its divisors is an integer number (59182117441).

Almost surely, 2^118364234881 is an apocalyptic number.

It is an amenable number.

118364234881 is a deficient number, since it is larger than the sum of its proper divisors (1).

118364234881 is an equidigital number, since it uses as much as digits as its factorization.

118364234881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 884736, while the sum is 49.

The spelling of 118364234881 in words is "one hundred eighteen billion, three hundred sixty-four million, two hundred thirty-four thousand, eight hundred eighty-one".