28652185420 has 12 divisors (see below), whose sum is σ = 60169589424. Its totient is φ = 11460874160.

The previous prime is 28652185417. The next prime is 28652185433. The reversal of 28652185420 is 2458125682.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 716304616 + ... + 716304655.

It is an arithmetic number, because the mean of its divisors is an integer number (5014132452).

Almost surely, 2^28652185420 is an apocalyptic number.

28652185420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28652185420 is an abundant number, since it is smaller than the sum of its proper divisors (31517404004).

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

28652185420 is a wasteful number, since it uses less digits than its factorization.

28652185420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432609280 (or 1432609278 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 43.

The spelling of 28652185420 in words is "twenty-eight billion, six hundred fifty-two million, one hundred eighty-five thousand, four hundred twenty".