68182228185 has 48 divisors (see below), whose sum is σ = 116654773632. Its totient is φ = 33997824000.

The previous prime is 68182228181. The next prime is 68182228187. The reversal of 68182228185 is 58182228186.

It is a happy number.

It is not a de Polignac number, because 68182228185 - 2² = 68182228181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (68182228181) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 602505 + ... + 706665.

It is an arithmetic number, because the mean of its divisors is an integer number (2430307784).

Almost surely, 2^68182228185 is an apocalyptic number.

It is an amenable number.

68182228185 is a deficient number, since it is larger than the sum of its proper divisors (48472545447).

68182228185 is a wasteful number, since it uses less digits than its factorization.

68182228185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104354 (or 104337 counting only the distinct ones).

The product of its digits is 983040, while the sum is 51.

Subtracting from 68182228185 its reverse (58182228186), we obtain a palindrome (9999999999).

The spelling of 68182228185 in words is "sixty-eight billion, one hundred eighty-two million, two hundred twenty-eight thousand, one hundred eighty-five".