68500071 has 6 divisors (see below), whose sum is σ = 98944560. Its totient is φ = 45666708.

The previous prime is 68500067. The next prime is 68500079. The reversal of 68500071 is 17000586.

It is not a de Polignac number, because 68500071 - 2² = 68500067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68500079) 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 5 ways as a sum of consecutive naturals, for example, 3805551 + ... + 3805568.

It is an arithmetic number, because the mean of its divisors is an integer number (16490760).

Almost surely, 2^68500071 is an apocalyptic number.

68500071 is a deficient number, since it is larger than the sum of its proper divisors (30444489).

68500071 is a wasteful number, since it uses less digits than its factorization.

68500071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7611125 (or 7611122 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 68500071 is about 8276.4769678892. The cubic root of 68500071 is about 409.1636152121.

The spelling of 68500071 in words is "sixty-eight million, five hundred thousand, seventy-one".