28783241271 has 16 divisors (see below), whose sum is σ = 42647078400. Its totient is φ = 19186469784.

The previous prime is 28783241261. The next prime is 28783241299. The reversal of 28783241271 is 17214238782.

28783241271 is a `hidden beast` number, since 287 + 83 + 24 + 1 + 271 = 666.

It is not a de Polignac number, because 28783241271 - 2¹⁰ = 28783240247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28783241251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174280 + ... + 296546.

It is an arithmetic number, because the mean of its divisors is an integer number (2665442400).

Almost surely, 2^28783241271 is an apocalyptic number.

28783241271 is a deficient number, since it is larger than the sum of its proper divisors (13863837129).

28783241271 is a wasteful number, since it uses less digits than its factorization.

28783241271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130995 (or 130989 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The spelling of 28783241271 in words is "twenty-eight billion, seven hundred eighty-three million, two hundred forty-one thousand, two hundred seventy-one".