68180843210 has 32 divisors (see below), whose sum is σ = 124501464720. Its totient is φ = 26879643648.

The previous prime is 68180843131. The next prime is 68180843239. The reversal of 68180843210 is 1234808186.

It can be written as a sum of positive squares in 8 ways, for example, as 1436637409 + 66744205801 = 37903^2 + 258349^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156194 + ... + 400946.

Almost surely, 2^68180843210 is an apocalyptic number.

68180843210 is a deficient number, since it is larger than the sum of its proper divisors (56320621510).

68180843210 is a wasteful number, since it uses less digits than its factorization.

68180843210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245162.

The product of its (nonzero) digits is 73728, while the sum is 41.

The spelling of 68180843210 in words is "sixty-eight billion, one hundred eighty million, eight hundred forty-three thousand, two hundred ten".