28471228182 has 12 divisors (see below), whose sum is σ = 61687661100. Its totient is φ = 9490409388.

The previous prime is 28471228157. The next prime is 28471228183. The reversal of 28471228182 is 28182217482.

28471228182 is a `hidden beast` number, since 2 + 8 + 471 + 22 + 81 + 82 = 666.

It is a super-2 number, since 2×28471228182² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28471228183) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 790867432 + ... + 790867467.

It is an arithmetic number, because the mean of its divisors is an integer number (5140638425).

Almost surely, 2^28471228182 is an apocalyptic number.

28471228182 is an abundant number, since it is smaller than the sum of its proper divisors (33216432918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28471228182 is a wasteful number, since it uses less digits than its factorization.

28471228182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581734907 (or 1581734904 counting only the distinct ones).

The product of its digits is 229376, while the sum is 45.

The spelling of 28471228182 in words is "twenty-eight billion, four hundred seventy-one million, two hundred twenty-eight thousand, one hundred eighty-two".