68467561 has 8 divisors (see below), whose sum is σ = 70848000. Its totient is φ = 66097920.

The previous prime is 68467549. The next prime is 68467571. The reversal of 68467561 is 16576486.

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 a de Polignac number, because none of the positive numbers 2^k-68467561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68467541) 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, 11460 + ... + 16378.

It is an arithmetic number, because the mean of its divisors is an integer number (8856000).

Almost surely, 2^68467561 is an apocalyptic number.

It is an amenable number.

68467561 is a deficient number, since it is larger than the sum of its proper divisors (2380439).

68467561 is a wasteful number, since it uses less digits than its factorization.

68467561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5399.

The product of its digits is 241920, while the sum is 43.

The square root of 68467561 is about 8274.5127348987. The cubic root of 68467561 is about 409.0988755516.

The spelling of 68467561 in words is "sixty-eight million, four hundred sixty-seven thousand, five hundred sixty-one".