28529638422 has 8 divisors (see below), whose sum is σ = 57059276856. Its totient is φ = 9509879472.

The previous prime is 28529638421. The next prime is 28529638429. The reversal of 28529638422 is 22483692582.

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

28529638422 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28529638421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2377469863 + ... + 2377469874.

It is an arithmetic number, because the mean of its divisors is an integer number (7132409607).

Almost surely, 2^28529638422 is an apocalyptic number.

28529638422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28529638422 is a wasteful number, since it uses less digits than its factorization.

28529638422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754939742.

The product of its digits is 3317760, while the sum is 51.

The spelling of 28529638422 in words is "twenty-eight billion, five hundred twenty-nine million, six hundred thirty-eight thousand, four hundred twenty-two".