118894241881 has 2 divisors, whose sum is σ = 118894241882. Its totient is φ = 118894241880.

The previous prime is 118894241839. The next prime is 118894241903. The reversal of 118894241881 is 188142498811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103883091481 + 15011150400 = 322309^2 + 122520^2 .

It is a cyclic number.

It is not a de Polignac number, because 118894241881 - 2²¹ = 118892144729 is a prime.

It is a super-2 number, since 2×118894241881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (118894241821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59447120940 + 59447120941.

It is an arithmetic number, because the mean of its divisors is an integer number (59447120941).

Almost surely, 2^118894241881 is an apocalyptic number.

It is an amenable number.

118894241881 is a deficient number, since it is larger than the sum of its proper divisors (1).

118894241881 is an equidigital number, since it uses as much as digits as its factorization.

118894241881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1179648, while the sum is 55.

The spelling of 118894241881 in words is "one hundred eighteen billion, eight hundred ninety-four million, two hundred forty-one thousand, eight hundred eighty-one".