6971996571 has 8 divisors (see below), whose sum is σ = 9311162640. Its totient is φ = 4640414112.

The previous prime is 6971996519. The next prime is 6971996573. The reversal of 6971996571 is 1756991796.

It is a happy number.

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

It is not a de Polignac number, because 6971996571 - 2¹⁴ = 6971980187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6971996573) 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, 1893756 + ... + 1897433.

It is an arithmetic number, because the mean of its divisors is an integer number (1163895330).

Almost surely, 2^6971996571 is an apocalyptic number.

6971996571 is a deficient number, since it is larger than the sum of its proper divisors (2339166069).

6971996571 is a wasteful number, since it uses less digits than its factorization.

6971996571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791805.

The product of its digits is 6429780, while the sum is 60.

The square root of 6971996571 is about 83498.4824472876. The cubic root of 6971996571 is about 1910.3768863279.

The spelling of 6971996571 in words is "six billion, nine hundred seventy-one million, nine hundred ninety-six thousand, five hundred seventy-one".