68176046989 has 8 divisors (see below), whose sum is σ = 68807566520. Its totient is φ = 67544637696.

The previous prime is 68176046947. The next prime is 68176047001. The reversal of 68176046989 is 98964067186.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 35375214889 + 32800832100 = 188083^2 + 181110^2 .

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 68176046989 - 2²⁵ = 68142492557 is a prime.

It is a super-2 number, since 2×68176046989² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68176046989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68176046929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1730737 + ... + 1769689.

It is an arithmetic number, because the mean of its divisors is an integer number (8600945815).

Almost surely, 2^68176046989 is an apocalyptic number.

It is an amenable number.

68176046989 is a deficient number, since it is larger than the sum of its proper divisors (631519531).

68176046989 is a wasteful number, since it uses less digits than its factorization.

68176046989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55119.

The product of its (nonzero) digits is 31352832, while the sum is 64.

The spelling of 68176046989 in words is "sixty-eight billion, one hundred seventy-six million, forty-six thousand, nine hundred eighty-nine".