28122552852 has 48 divisors (see below), whose sum is σ = 67543358400. Its totient is φ = 9100449792.

The previous prime is 28122552827. The next prime is 28122552863. The reversal of 28122552852 is 25825522182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128823 + ... + 269889.

It is an arithmetic number, because the mean of its divisors is an integer number (1407153300).

Almost surely, 2^28122552852 is an apocalyptic number.

It is an amenable number.

28122552852 is an abundant number, since it is smaller than the sum of its proper divisors (39420805548).

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

28122552852 is a wasteful number, since it uses less digits than its factorization.

28122552852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141560 (or 141558 counting only the distinct ones).

The product of its digits is 256000, while the sum is 42.

The spelling of 28122552852 in words is "twenty-eight billion, one hundred twenty-two million, five hundred fifty-two thousand, eight hundred fifty-two".