6981496911 has 24 divisors (see below), whose sum is σ = 10140484224. Its totient is φ = 4628489040.

The previous prime is 6981496897. The next prime is 6981496927. The reversal of 6981496911 is 1196941896.

6981496911 is a `hidden beast` number, since 69 + 8 + 1 + 496 + 91 + 1 = 666.

It is not a de Polignac number, because 6981496911 - 2⁹ = 6981496399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6981496931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2636190 + ... + 2638836.

It is an arithmetic number, because the mean of its divisors is an integer number (422520176).

Almost surely, 2^6981496911 is an apocalyptic number.

6981496911 is a deficient number, since it is larger than the sum of its proper divisors (3158987313).

6981496911 is a wasteful number, since it uses less digits than its factorization.

6981496911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4171 (or 4168 counting only the distinct ones).

The product of its digits is 839808, while the sum is 54.

The square root of 6981496911 is about 83555.3523779297. The cubic root of 6981496911 is about 1911.2442128467.

The spelling of 6981496911 in words is "six billion, nine hundred eighty-one million, four hundred ninety-six thousand, nine hundred eleven".