68661363 has 4 divisors (see below), whose sum is σ = 91548488. Its totient is φ = 45774240.

The previous prime is 68661289. The next prime is 68661367. The reversal of 68661363 is 36316686.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 68661363 - 2⁸ = 68661107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68661367) 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 3 ways as a sum of consecutive naturals, for example, 11443558 + ... + 11443563.

It is an arithmetic number, because the mean of its divisors is an integer number (22887122).

Almost surely, 2^68661363 is an apocalyptic number.

68661363 is a deficient number, since it is larger than the sum of its proper divisors (22887125).

68661363 is a wasteful number, since it uses less digits than its factorization.

68661363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22887124.

The product of its digits is 93312, while the sum is 39.

The square root of 68661363 is about 8286.2152397823. The cubic root of 68661363 is about 409.4845058177.

The spelling of 68661363 in words is "sixty-eight million, six hundred sixty-one thousand, three hundred sixty-three".