68380490177 has 16 divisors (see below), whose sum is σ = 70000951680. Its totient is φ = 66779910912.

The previous prime is 68380490159. The next prime is 68380490183. The reversal of 68380490177 is 77109408386.

It is a cyclic number.

It is not a de Polignac number, because 68380490177 - 2¹⁰ = 68380489153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68380490197) by changing a digit.

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, 4152953 + ... + 4169385.

It is an arithmetic number, because the mean of its divisors is an integer number (4375059480).

Almost surely, 2^68380490177 is an apocalyptic number.

68380490177 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

68380490177 is a deficient number, since it is larger than the sum of its proper divisors (1620461503).

68380490177 is a wasteful number, since it uses less digits than its factorization.

68380490177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17032.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 68380490177 in words is "sixty-eight billion, three hundred eighty million, four hundred ninety thousand, one hundred seventy-seven".