28087001652 has 24 divisors (see below), whose sum is σ = 65561529600. Its totient is φ = 9358734976.

The previous prime is 28087001647. The next prime is 28087001653. The reversal of 28087001652 is 25610078082.

It is a self number, because there is not a number n which added to its sum of digits gives 28087001652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28087001653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417252 + ... + 479867.

It is an arithmetic number, because the mean of its divisors is an integer number (2731730400).

Almost surely, 2^28087001652 is an apocalyptic number.

It is an amenable number.

28087001652 is an abundant number, since it is smaller than the sum of its proper divisors (37474527948).

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

28087001652 is a wasteful number, since it uses less digits than its factorization.

28087001652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899735 (or 899733 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 28087001652 in words is "twenty-eight billion, eighty-seven million, one thousand, six hundred fifty-two".