2671891306 has 12 divisors (see below), whose sum is σ = 4662177858. Its totient is φ = 1145096232.

The previous prime is 2671891267. The next prime is 2671891349. The reversal of 2671891306 is 6031981762.

It can be written as a sum of positive squares in only one way, i.e., 2601918081 + 69973225 = 51009^2 + 8365^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13632001 + ... + 13632196.

Almost surely, 2^2671891306 is an apocalyptic number.

2671891306 is a deficient number, since it is larger than the sum of its proper divisors (1990286552).

2671891306 is a wasteful number, since it uses less digits than its factorization.

2671891306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27264213 (or 27264206 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 2671891306 is about 51690.3405483075. The cubic root of 2671891306 is about 1387.6275985350.

The spelling of 2671891306 in words is "two billion, six hundred seventy-one million, eight hundred ninety-one thousand, three hundred six".