68078571 has 16 divisors (see below), whose sum is σ = 99989760. Its totient is φ = 40857120.

The previous prime is 68078467. The next prime is 68078579. The reversal of 68078571 is 17587086.

It is not a de Polignac number, because 68078571 - 2¹⁹ = 67554283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68078579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6616 + ... + 13413.

It is an arithmetic number, because the mean of its divisors is an integer number (6249360).

Almost surely, 2^68078571 is an apocalyptic number.

68078571 is a deficient number, since it is larger than the sum of its proper divisors (31911189).

68078571 is a wasteful number, since it uses less digits than its factorization.

68078571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20146.

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 68078571 is about 8250.9739425113. The cubic root of 68078571 is about 408.3226554290.

The spelling of 68078571 in words is "sixty-eight million, seventy-eight thousand, five hundred seventy-one".