28858730017146 has 32 divisors (see below), whose sum is σ = 57957993643968. Its totient is φ = 9579489173760.

The previous prime is 28858730017141. The next prime is 28858730017171. The reversal of 28858730017146 is 64171003785882.

It is a self number, because there is not a number n which added to its sum of digits gives 28858730017146.

It is not an unprimeable number, because it can be changed into a prime (28858730017141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99358585 + ... + 99648611.

It is an arithmetic number, because the mean of its divisors is an integer number (1811187301374).

Almost surely, 2^{28858730017146} is an apocalyptic number.

28858730017146 is an abundant number, since it is smaller than the sum of its proper divisors (29099263626822).

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

28858730017146 is a wasteful number, since it uses less digits than its factorization.

28858730017146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359086.

The product of its (nonzero) digits is 18063360, while the sum is 60.

The spelling of 28858730017146 in words is "twenty-eight trillion, eight hundred fifty-eight billion, seven hundred thirty million, seventeen thousand, one hundred forty-six".