28635612251300 has 18 divisors (see below), whose sum is σ = 62139278585538. Its totient is φ = 11454244900480.

The previous prime is 28635612251263. The next prime is 28635612251357. The reversal of 28635612251300 is 315221653682.

It can be written as a sum of positive squares in 3 ways, for example, as 2100998068324 + 26534614182976 = 1449482^2 + 5151176^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 143178061157 + ... + 143178061356.

It is an arithmetic number, because the mean of its divisors is an integer number (3452182143641).

Almost surely, 2^{28635612251300} is an apocalyptic number.

28635612251300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28635612251300 is an abundant number, since it is smaller than the sum of its proper divisors (33503666334238).

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

28635612251300 is a wasteful number, since it uses less digits than its factorization.

28635612251300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286356122527 (or 286356122520 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 28635612251300 in words is "twenty-eight trillion, six hundred thirty-five billion, six hundred twelve million, two hundred fifty-one thousand, three hundred".