68190009186 has 32 divisors (see below), whose sum is σ = 146913782400. Its totient is φ = 20975399424.

The previous prime is 68190009157. The next prime is 68190009203.

68190009186 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143890 + ... + 396338.

It is an arithmetic number, because the mean of its divisors is an integer number (4591055700).

Almost surely, 2^68190009186 is an apocalyptic number.

68190009186 is an abundant number, since it is smaller than the sum of its proper divisors (78723773214).

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

68190009186 is a wasteful number, since it uses less digits than its factorization.

68190009186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255930.

The product of its (nonzero) digits is 186624, while the sum is 48.

The spelling of 68190009186 in words is "sixty-eight billion, one hundred ninety million, nine thousand, one hundred eighty-six".