68064771 has 4 divisors (see below), whose sum is σ = 90753032. Its totient is φ = 45376512.

The previous prime is 68064767. The next prime is 68064781. The reversal of 68064771 is 17746086.

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

It is not a de Polignac number, because 68064771 - 2² = 68064767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68064721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11344126 + ... + 11344131.

It is an arithmetic number, because the mean of its divisors is an integer number (22688258).

Almost surely, 2^68064771 is an apocalyptic number.

68064771 is a deficient number, since it is larger than the sum of its proper divisors (22688261).

68064771 is a wasteful number, since it uses less digits than its factorization.

68064771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22688260.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 68064771 is about 8250.1376352155. The cubic root of 68064771 is about 408.2950636169.

The spelling of 68064771 in words is "sixty-eight million, sixty-four thousand, seven hundred seventy-one".