68611845 has 8 divisors (see below), whose sum is σ = 109778976. Its totient is φ = 36592976.

The previous prime is 68611843. The next prime is 68611859. The reversal of 68611845 is 54811686.

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 68611845 - 2¹ = 68611843 is a prime.

It is a super-3 number, since 3×68611845³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68611841) 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, 2287047 + ... + 2287076.

It is an arithmetic number, because the mean of its divisors is an integer number (13722372).

Almost surely, 2^68611845 is an apocalyptic number.

It is an amenable number.

68611845 is a deficient number, since it is larger than the sum of its proper divisors (41167131).

68611845 is a wasteful number, since it uses less digits than its factorization.

68611845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4574131.

The product of its digits is 46080, while the sum is 39.

The square root of 68611845 is about 8283.2267263428. The cubic root of 68611845 is about 409.3860432116.

The spelling of 68611845 in words is "sixty-eight million, six hundred eleven thousand, eight hundred forty-five".