7970831707689 has 6 divisors (see below), whose sum is σ = 11513423577786. Its totient is φ = 5313887805120.

The previous prime is 7970831707673. The next prime is 7970831707721. The reversal of 7970831707689 is 9867071380797.

It can be written as a sum of positive squares in only one way, i.e., 4396905734400 + 3573925973289 = 2096880^2 + 1890483^2 .

It is not a de Polignac number, because 7970831707689 - 2⁴ = 7970831707673 is a prime.

It is a super-2 number, since 2×7970831707689² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7970831707589) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 442823983752 + ... + 442823983769.

It is an arithmetic number, because the mean of its divisors is an integer number (1918903929631).

Almost surely, 2^{7970831707689} is an apocalyptic number.

It is an amenable number.

7970831707689 is a deficient number, since it is larger than the sum of its proper divisors (3542591870097).

7970831707689 is a wasteful number, since it uses less digits than its factorization.

7970831707689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885647967527 (or 885647967524 counting only the distinct ones).

The product of its (nonzero) digits is 224042112, while the sum is 72.

The spelling of 7970831707689 in words is "seven trillion, nine hundred seventy billion, eight hundred thirty-one million, seven hundred seven thousand, six hundred eighty-nine".