6957971117 has 4 divisors (see below), whose sum is σ = 7029702876. Its totient is φ = 6886239360.

The previous prime is 6957971077. The next prime is 6957971147. The reversal of 6957971117 is 7111797596.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4594941796 + 2363029321 = 67786^2 + 48611^2 .

It is a cyclic number.

It is not a de Polignac number, because 6957971117 - 2¹⁸ = 6957708973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6957971147) 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, 35865734 + ... + 35865927.

It is an arithmetic number, because the mean of its divisors is an integer number (1757425719).

Almost surely, 2^6957971117 is an apocalyptic number.

It is an amenable number.

6957971117 is a deficient number, since it is larger than the sum of its proper divisors (71731759).

6957971117 is an equidigital number, since it uses as much as digits as its factorization.

6957971117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71731758.

The product of its digits is 833490, while the sum is 53.

The square root of 6957971117 is about 83414.4538854029. The cubic root of 6957971117 is about 1909.0950014842.

The spelling of 6957971117 in words is "six billion, nine hundred fifty-seven million, nine hundred seventy-one thousand, one hundred seventeen".