6971849981011 has 4 divisors (see below), whose sum is σ = 6972520942224. Its totient is φ = 6971179019800.

The previous prime is 6971849980993. The next prime is 6971849981027. The reversal of 6971849981011 is 1101899481796.

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

It is a cyclic number.

It is not a de Polignac number, because 6971849981011 - 2¹³ = 6971849972819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6971849981051) 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, 335465020 + ... + 335485801.

It is an arithmetic number, because the mean of its divisors is an integer number (1743130235556).

Almost surely, 2^{6971849981011} is an apocalyptic number.

6971849981011 is a deficient number, since it is larger than the sum of its proper divisors (670961213).

6971849981011 is a wasteful number, since it uses less digits than its factorization.

6971849981011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670961212.

The product of its (nonzero) digits is 7838208, while the sum is 64.

The spelling of 6971849981011 in words is "six trillion, nine hundred seventy-one billion, eight hundred forty-nine million, nine hundred eighty-one thousand, eleven".