68545671 has 8 divisors (see below), whose sum is σ = 91828224. Its totient is φ = 45480120.

The previous prime is 68545667. The next prime is 68545679. The reversal of 68545671 is 17654586.

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

It is not a de Polignac number, because 68545671 - 2² = 68545667 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68545679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53511 + ... + 54776.

It is an arithmetic number, because the mean of its divisors is an integer number (11478528).

Almost surely, 2^68545671 is an apocalyptic number.

68545671 is a deficient number, since it is larger than the sum of its proper divisors (23282553).

68545671 is a wasteful number, since it uses less digits than its factorization.

68545671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108501.

The product of its digits is 201600, while the sum is 42.

The square root of 68545671 is about 8279.2313048978. The cubic root of 68545671 is about 409.2543874891.

The spelling of 68545671 in words is "sixty-eight million, five hundred forty-five thousand, six hundred seventy-one".