6971689946 has 32 divisors (see below), whose sum is σ = 11435562768. Its totient is φ = 3168253440.

The previous prime is 6971689937. The next prime is 6971689951. The reversal of 6971689946 is 6499861796.

It can be written as a sum of positive squares in 8 ways, for example, as 5262777025 + 1708912921 = 72545^2 + 41339^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1251800 + ... + 1257356.

Almost surely, 2^6971689946 is an apocalyptic number.

6971689946 is a deficient number, since it is larger than the sum of its proper divisors (4463872822).

6971689946 is a wasteful number, since it uses less digits than its factorization.

6971689946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6306.

The product of its digits is 35271936, while the sum is 65.

The square root of 6971689946 is about 83496.6463158850. The cubic root of 6971689946 is about 1910.3488801035.

The spelling of 6971689946 in words is "six billion, nine hundred seventy-one million, six hundred eighty-nine thousand, nine hundred forty-six".