68766440187 has 8 divisors (see below), whose sum is σ = 91799459136. Its totient is φ = 45788857352.

The previous prime is 68766440179. The next prime is 68766440233. The reversal of 68766440187 is 78104466786.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68766440187 - 2³ = 68766440179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68766440167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13856133 + ... + 13861094.

It is an arithmetic number, because the mean of its divisors is an integer number (11474932392).

Almost surely, 2^68766440187 is an apocalyptic number.

68766440187 is a deficient number, since it is larger than the sum of its proper divisors (23033018949).

68766440187 is a wasteful number, since it uses less digits than its factorization.

68766440187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27718057.

The product of its (nonzero) digits is 10838016, while the sum is 57.

The spelling of 68766440187 in words is "sixty-eight billion, seven hundred sixty-six million, four hundred forty thousand, one hundred eighty-seven".