2872129271 has 4 divisors (see below), whose sum is σ = 3133231944. Its totient is φ = 2611026600.

The previous prime is 2872129259. The next prime is 2872129291. The reversal of 2872129271 is 1729212782.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2872129271 - 2³⁰ = 1798387447 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 (2872129241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130551320 + ... + 130551341.

It is an arithmetic number, because the mean of its divisors is an integer number (783307986).

Almost surely, 2^2872129271 is an apocalyptic number.

2872129271 is a deficient number, since it is larger than the sum of its proper divisors (261102673).

2872129271 is a wasteful number, since it uses less digits than its factorization.

2872129271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261102672.

The product of its digits is 56448, while the sum is 41.

The square root of 2872129271 is about 53592.2501020437. The cubic root of 2872129271 is about 1421.4600586098.

The spelling of 2872129271 in words is "two billion, eight hundred seventy-two million, one hundred twenty-nine thousand, two hundred seventy-one".