68587580771 has 4 divisors (see below), whose sum is σ = 69750082200. Its totient is φ = 67425079344.

The previous prime is 68587580753. The next prime is 68587580777. The reversal of 68587580771 is 17708578586.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68587580771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68587580777) 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, 581250626 + ... + 581250743.

It is an arithmetic number, because the mean of its divisors is an integer number (17437520550).

Almost surely, 2^68587580771 is an apocalyptic number.

68587580771 is a deficient number, since it is larger than the sum of its proper divisors (1162501429).

68587580771 is a wasteful number, since it uses less digits than its factorization.

68587580771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162501428.

The product of its (nonzero) digits is 26342400, while the sum is 62.

The spelling of 68587580771 in words is "sixty-eight billion, five hundred eighty-seven million, five hundred eighty thousand, seven hundred seventy-one".