6874549691 has 2 divisors, whose sum is σ = 6874549692. Its totient is φ = 6874549690.

The previous prime is 6874549687. The next prime is 6874549697. The reversal of 6874549691 is 1969454786.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6874549691 - 2² = 6874549687 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6874549691.

It is not a weakly prime, because it can be changed into another prime (6874549697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3437274845 + 3437274846.

It is an arithmetic number, because the mean of its divisors is an integer number (3437274846).

Almost surely, 2^6874549691 is an apocalyptic number.

6874549691 is a deficient number, since it is larger than the sum of its proper divisors (1).

6874549691 is an equidigital number, since it uses as much as digits as its factorization.

6874549691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13063680, while the sum is 59.

The square root of 6874549691 is about 82912.9042489768. The cubic root of 6874549691 is about 1901.4347142326.

The spelling of 6874549691 in words is "six billion, eight hundred seventy-four million, five hundred forty-nine thousand, six hundred ninety-one".