28292854772 has 48 divisors (see below), whose sum is σ = 60996617472. Its totient is φ = 11182095360.

The previous prime is 28292854771. The next prime is 28292854813. The reversal of 28292854772 is 27745829282.

It is a super-3 number, since 3×28292854772³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28292854771) 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 15 ways as a sum of consecutive naturals, for example, 350372 + ... + 423492.

It is an arithmetic number, because the mean of its divisors is an integer number (1270762864).

Almost surely, 2^28292854772 is an apocalyptic number.

It is an amenable number.

28292854772 is an abundant number, since it is smaller than the sum of its proper divisors (32703762700).

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

28292854772 is a wasteful number, since it uses less digits than its factorization.

28292854772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74208 (or 74206 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 56.

The spelling of 28292854772 in words is "twenty-eight billion, two hundred ninety-two million, eight hundred fifty-four thousand, seven hundred seventy-two".