28797008998 has 4 divisors (see below), whose sum is σ = 43195513500. Its totient is φ = 14398504498.

The previous prime is 28797008953. The next prime is 28797009023. The reversal of 28797008998 is 89980079782.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7199252248 + ... + 7199252251.

It is an arithmetic number, because the mean of its divisors is an integer number (10798878375).

Almost surely, 2^28797008998 is an apocalyptic number.

28797008998 is a deficient number, since it is larger than the sum of its proper divisors (14398504502).

28797008998 is a wasteful number, since it uses less digits than its factorization.

28797008998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14398504501.

The product of its (nonzero) digits is 36578304, while the sum is 67.

The spelling of 28797008998 in words is "twenty-eight billion, seven hundred ninety-seven million, eight thousand, nine hundred ninety-eight".