6974108991 has 16 divisors (see below), whose sum is σ = 10459572320. Its totient is φ = 4649404536.

The previous prime is 6974108989. The next prime is 6974109017. The reversal of 6974108991 is 1998014796.

6974108991 is a `hidden beast` number, since 69 + 7 + 410 + 89 + 91 = 666.

It is not a de Polignac number, because 6974108991 - 2¹ = 6974108989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6974108941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1592260 + ... + 1596633.

It is an arithmetic number, because the mean of its divisors is an integer number (653723270).

Almost surely, 2^6974108991 is an apocalyptic number.

6974108991 is a deficient number, since it is larger than the sum of its proper divisors (3485463329).

6974108991 is an frugal number, since it uses more digits than its factorization.

6974108991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3188914 (or 3188896 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 54.

The square root of 6974108991 is about 83511.1309407315. The cubic root of 6974108991 is about 1910.5698062374.

The spelling of 6974108991 in words is "six billion, nine hundred seventy-four million, one hundred eight thousand, nine hundred ninety-one".