115630281218 has 16 divisors (see below), whose sum is σ = 174375805560. Its totient is φ = 57505593600.

The previous prime is 115630281211. The next prime is 115630281223. The reversal of 115630281218 is 812182036511.

It can be written as a sum of positive squares in 4 ways, for example, as 115353291769 + 276989449 = 339637^2 + 16643^2 .

It is not an unprimeable number, because it can be changed into a prime (115630281211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254888 + ... + 544268.

Almost surely, 2^115630281218 is an apocalyptic number.

115630281218 is a deficient number, since it is larger than the sum of its proper divisors (58745524342).

115630281218 is a wasteful number, since it uses less digits than its factorization.

115630281218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290453.

The product of its (nonzero) digits is 23040, while the sum is 38.

The spelling of 115630281218 in words is "one hundred fifteen billion, six hundred thirty million, two hundred eighty-one thousand, two hundred eighteen".