68715849 has 16 divisors (see below), whose sum is σ = 95049152. Its totient is φ = 44126208.

The previous prime is 68715733. The next prime is 68715869. The reversal of 68715849 is 94851786.

It is not a de Polignac number, because 68715849 - 2⁹ = 68715337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68715798 and 68715807.

It is not an unprimeable number, because it can be changed into a prime (68715869) 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, 5769 + ... + 13065.

It is an arithmetic number, because the mean of its divisors is an integer number (5940572).

Almost surely, 2^68715849 is an apocalyptic number.

It is an amenable number.

68715849 is a deficient number, since it is larger than the sum of its proper divisors (26333303).

68715849 is a wasteful number, since it uses less digits than its factorization.

68715849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7416.

The product of its digits is 483840, while the sum is 48.

The square root of 68715849 is about 8289.5023372938. The cubic root of 68715849 is about 409.5927922093.

It can be divided in two parts, 6871 and 5849, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 68715849 in words is "sixty-eight million, seven hundred fifteen thousand, eight hundred forty-nine".