28605252452 has 24 divisors (see below), whose sum is σ = 57220914240. Its totient is φ = 12257163360.

The previous prime is 28605252443. The next prime is 28605252461. The reversal of 28605252452 is 25425250682.

It is an interprime number because it is at equal distance from previous prime (28605252443) and next prime (28605252461).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68627 + ... + 248837.

It is an arithmetic number, because the mean of its divisors is an integer number (2384204760).

Almost surely, 2^28605252452 is an apocalyptic number.

It is an amenable number.

28605252452 is an abundant number, since it is smaller than the sum of its proper divisors (28615661788).

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

28605252452 is a wasteful number, since it uses less digits than its factorization.

28605252452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185891 (or 185889 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 41.

The spelling of 28605252452 in words is "twenty-eight billion, six hundred five million, two hundred fifty-two thousand, four hundred fifty-two".