2680547971 has 4 divisors (see below), whose sum is σ = 2683954792. Its totient is φ = 2677141152.

The previous prime is 2680547957. The next prime is 2680547999. The reversal of 2680547971 is 1797450862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1797450862 = 2 ⋅898725431.

It is a cyclic number.

It is not a de Polignac number, because 2680547971 - 2¹⁵ = 2680515203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2680547921) 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, 1702230 + ... + 1703803.

It is an arithmetic number, because the mean of its divisors is an integer number (670988698).

Almost surely, 2^2680547971 is an apocalyptic number.

2680547971 is a deficient number, since it is larger than the sum of its proper divisors (3406821).

2680547971 is an equidigital number, since it uses as much as digits as its factorization.

2680547971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3406820.

The product of its (nonzero) digits is 846720, while the sum is 49.

The square root of 2680547971 is about 51774.0086433338. The cubic root of 2680547971 is about 1389.1245753178.

The spelling of 2680547971 in words is "two billion, six hundred eighty million, five hundred forty-seven thousand, nine hundred seventy-one".