6971718064 has 20 divisors (see below), whose sum is σ = 13837161240. Its totient is φ = 3400837760.

The previous prime is 6971718043. The next prime is 6971718073. The reversal of 6971718064 is 4608171796.

It is a junction number, because it is equal to n+sod(n) for n = 6971717999 and 6971718017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5313154 + ... + 5314465.

It is an arithmetic number, because the mean of its divisors is an integer number (691858062).

Almost surely, 2^6971718064 is an apocalyptic number.

It is an amenable number.

6971718064 is a deficient number, since it is larger than the sum of its proper divisors (6865443176).

6971718064 is a wasteful number, since it uses less digits than its factorization.

6971718064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10627668 (or 10627662 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 6971718064 is about 83496.8146937355. The cubic root of 6971718064 is about 1910.3514483530.

The spelling of 6971718064 in words is "six billion, nine hundred seventy-one million, seven hundred eighteen thousand, sixty-four".