118468819281 has 16 divisors (see below), whose sum is σ = 160058738880. Its totient is φ = 77932673280.

The previous prime is 118468819279. The next prime is 118468819283. The reversal of 118468819281 is 182918864811.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (118468819279) and next prime (118468819283).

It is not a de Polignac number, because 118468819281 - 2¹ = 118468819279 is a prime.

It is a super-2 number, since 2×118468819281² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118468819283) 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 in 15 ways as a sum of consecutive naturals, for example, 320740 + ... + 582933.

It is an arithmetic number, because the mean of its divisors is an integer number (10003671180).

Almost surely, 2^118468819281 is an apocalyptic number.

It is an amenable number.

118468819281 is a deficient number, since it is larger than the sum of its proper divisors (41589919599).

118468819281 is an equidigital number, since it uses as much as digits as its factorization.

118468819281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904256.

The product of its digits is 1769472, while the sum is 57.

The spelling of 118468819281 in words is "one hundred eighteen billion, four hundred sixty-eight million, eight hundred nineteen thousand, two hundred eighty-one".