2671671637 has 4 divisors (see below), whose sum is σ = 2671776576. Its totient is φ = 2671566700.

The previous prime is 2671671599. The next prime is 2671671683. The reversal of 2671671637 is 7361761762.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2671671637 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 (2671671437) 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, 12708 + ... + 74194.

It is an arithmetic number, because the mean of its divisors is an integer number (667944144).

Almost surely, 2^2671671637 is an apocalyptic number.

It is an amenable number.

2671671637 is a deficient number, since it is larger than the sum of its proper divisors (104939).

2671671637 is an equidigital number, since it uses as much as digits as its factorization.

2671671637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104938.

The product of its digits is 444528, while the sum is 46.

The square root of 2671671637 is about 51688.2156492174. The cubic root of 2671671637 is about 1387.5895696526.

The spelling of 2671671637 in words is "two billion, six hundred seventy-one million, six hundred seventy-one thousand, six hundred thirty-seven".