2666267871 has 8 divisors (see below), whose sum is σ = 3669702144. Its totient is φ = 1720172760.

The previous prime is 2666267867. The next prime is 2666267897. The reversal of 2666267871 is 1787626662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2666267871 - 2² = 2666267867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666267861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14334681 + ... + 14334866.

It is an arithmetic number, because the mean of its divisors is an integer number (458712768).

Almost surely, 2^2666267871 is an apocalyptic number.

2666267871 is a deficient number, since it is larger than the sum of its proper divisors (1003434273).

2666267871 is a wasteful number, since it uses less digits than its factorization.

2666267871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28669581.

The product of its digits is 2032128, while the sum is 51.

The square root of 2666267871 is about 51635.9164826190. The cubic root of 2666267871 is about 1386.6534178871.

The spelling of 2666267871 in words is "two billion, six hundred sixty-six million, two hundred sixty-seven thousand, eight hundred seventy-one".