68821612971 has 8 divisors (see below), whose sum is σ = 92242581504. Its totient is φ = 45640859880.

The previous prime is 68821612967. The next prime is 68821612997. The reversal of 68821612971 is 17921612886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68821612971 - 2² = 68821612967 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68821614971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60053191 + ... + 60054336.

It is an arithmetic number, because the mean of its divisors is an integer number (11530322688).

Almost surely, 2^68821612971 is an apocalyptic number.

68821612971 is a deficient number, since it is larger than the sum of its proper divisors (23420968533).

68821612971 is a wasteful number, since it uses less digits than its factorization.

68821612971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120107721.

The product of its digits is 580608, while the sum is 51.

The spelling of 68821612971 in words is "sixty-eight billion, eight hundred twenty-one million, six hundred twelve thousand, nine hundred seventy-one".