68465027971 has 4 divisors (see below), whose sum is σ = 70134906744. Its totient is φ = 66795149200.

The previous prime is 68465027947. The next prime is 68465027987. The reversal of 68465027971 is 17972056486.

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

It is a cyclic number.

It is not a de Polignac number, because 68465027971 - 2¹⁹ = 68464503683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68465027921) 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, 834939325 + ... + 834939406.

It is an arithmetic number, because the mean of its divisors is an integer number (17533726686).

Almost surely, 2^68465027971 is an apocalyptic number.

68465027971 is a deficient number, since it is larger than the sum of its proper divisors (1669878773).

68465027971 is a wasteful number, since it uses less digits than its factorization.

68465027971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669878772.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 68465027971 in words is "sixty-eight billion, four hundred sixty-five million, twenty-seven thousand, nine hundred seventy-one".