28788107830 has 32 divisors (see below), whose sum is σ = 54804476160. Its totient is φ = 10857460320.

The previous prime is 28788107807. The next prime is 28788107857. The reversal of 28788107830 is 3870188782.

It is a happy number.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318954 + ... + 399133.

It is an arithmetic number, because the mean of its divisors is an integer number (1712639880).

Almost surely, 2^28788107830 is an apocalyptic number.

28788107830 is a deficient number, since it is larger than the sum of its proper divisors (26016368330).

28788107830 is a wasteful number, since it uses less digits than its factorization.

28788107830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718324.

The product of its (nonzero) digits is 1204224, while the sum is 52.

The spelling of 28788107830 in words is "twenty-eight billion, seven hundred eighty-eight million, one hundred seven thousand, eight hundred thirty".