28258696908 has 192 divisors, whose sum is σ = 84988108800. Its totient is φ = 8048367360.

The previous prime is 28258696891. The next prime is 28258696969. The reversal of 28258696908 is 80969685282.

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 63 ways as a sum of consecutive naturals, for example, 986938 + ... + 1015166.

It is an arithmetic number, because the mean of its divisors is an integer number (442646400).

Almost surely, 2^28258696908 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28258696908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42494054400).

28258696908 is an abundant number, since it is smaller than the sum of its proper divisors (56729411892).

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

28258696908 is a wasteful number, since it uses less digits than its factorization.

28258696908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28309 (or 28301 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 28258696908 in words is "twenty-eight billion, two hundred fifty-eight million, six hundred ninety-six thousand, nine hundred eight".