68661461 has 8 divisors (see below), whose sum is σ = 74995200. Its totient is φ = 62343040.

The previous prime is 68661449. The next prime is 68661491. The reversal of 68661461 is 16416686.

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 68661461 - 2¹⁰ = 68660437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68661401) 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, 6860 + ... + 13578.

It is an arithmetic number, because the mean of its divisors is an integer number (9374400).

Almost surely, 2^68661461 is an apocalyptic number.

It is an amenable number.

68661461 is a deficient number, since it is larger than the sum of its proper divisors (6333739).

68661461 is a wasteful number, since it uses less digits than its factorization.

68661461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7659.

The product of its digits is 41472, while the sum is 38.

The square root of 68661461 is about 8286.2211532157. The cubic root of 68661461 is about 409.4847006359.

The spelling of 68661461 in words is "sixty-eight million, six hundred sixty-one thousand, four hundred sixty-one".