28730000030000 has 50 divisors (see below), whose sum is σ = 69558203096844. Its totient is φ = 11492000008000.

The previous prime is 28730000029993. The next prime is 28730000030057. The reversal of 28730000030000 is 3000003782.

It is a tau number, because it is divible by the number of its divisors (50).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1436490002 + ... + 1436510001.

Almost surely, 2^{28730000030000} is an apocalyptic number.

28730000030000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28730000030000 is an abundant number, since it is smaller than the sum of its proper divisors (40828203066844).

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

28730000030000 is an equidigital number, since it uses as much as digits as its factorization.

28730000030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873000031 (or 2873000010 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 28730000030000 its reverse (3000003782), we get a palindrome (28733000033782).

The spelling of 28730000030000 in words is "twenty-eight trillion, seven hundred thirty billion, thirty thousand".