28368669139250 has 64 divisors (see below), whose sum is σ = 57936676861440. Its totient is φ = 10315399536000.

The previous prime is 28368669139247. The next prime is 28368669139271. The reversal of 28368669139250 is 5293196686382.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61764446 + ... + 62222054.

It is an arithmetic number, because the mean of its divisors is an integer number (905260575960).

Almost surely, 2^{28368669139250} is an apocalyptic number.

28368669139250 is an abundant number, since it is smaller than the sum of its proper divisors (29568007722190).

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

28368669139250 is a wasteful number, since it uses less digits than its factorization.

28368669139250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480180 (or 480170 counting only the distinct ones).

The product of its (nonzero) digits is 201553920, while the sum is 68.

The spelling of 28368669139250 in words is "twenty-eight trillion, three hundred sixty-eight billion, six hundred sixty-nine million, one hundred thirty-nine thousand, two hundred fifty".