28306582874652 has 48 divisors (see below), whose sum is σ = 68434092371232. Its totient is φ = 9099269867520.

The previous prime is 28306582874551. The next prime is 28306582874653. The reversal of 28306582874652 is 25647828560382.

It is a super-2 number, since 2×28306582874652² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28306582874653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282045249 + ... + 282145592.

It is an arithmetic number, because the mean of its divisors is an integer number (1425710257734).

Almost surely, 2^{28306582874652} is an apocalyptic number.

It is an amenable number.

28306582874652 is an abundant number, since it is smaller than the sum of its proper divisors (40127509496580).

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

28306582874652 is a wasteful number, since it uses less digits than its factorization.

28306582874652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564190998 (or 564190996 counting only the distinct ones).

The product of its (nonzero) digits is 309657600, while the sum is 66.

The spelling of 28306582874652 in words is "twenty-eight trillion, three hundred six billion, five hundred eighty-two million, eight hundred seventy-four thousand, six hundred fifty-two".