238718002818 has 16 divisors (see below), whose sum is σ = 490339681920. Its totient is φ = 77422054896.

The previous prime is 238718002813. The next prime is 238718002829. The reversal of 238718002818 is 818200817832.

238718002818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×238718002818² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (238718002813) 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 7 ways as a sum of consecutive naturals, for example, 537652938 + ... + 537653381.

It is an arithmetic number, because the mean of its divisors is an integer number (30646230120).

Almost surely, 2^238718002818 is an apocalyptic number.

238718002818 is an abundant number, since it is smaller than the sum of its proper divisors (251621679102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238718002818 is a wasteful number, since it uses less digits than its factorization.

238718002818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075306361.

The product of its (nonzero) digits is 344064, while the sum is 48.

The spelling of 238718002818 in words is "two hundred thirty-eight billion, seven hundred eighteen million, two thousand, eight hundred eighteen".