28873016042900 has 18 divisors (see below), whose sum is σ = 62654444813310. Its totient is φ = 11549206417120.

The previous prime is 28873016042881. The next prime is 28873016042929. The reversal of 28873016042900 is 924061037882.

It can be written as a sum of positive squares in 3 ways, for example, as 9886534449796 + 18986481593104 = 3144286^2 + 4357348^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144365080115 + ... + 144365080314.

Almost surely, 2^{28873016042900} is an apocalyptic number.

28873016042900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28873016042900 is an abundant number, since it is smaller than the sum of its proper divisors (33781428770410).

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

28873016042900 is a wasteful number, since it uses less digits than its factorization.

28873016042900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288730160443 (or 288730160436 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 28873016042900 in words is "twenty-eight trillion, eight hundred seventy-three billion, sixteen million, forty-two thousand, nine hundred".