28092798678980 has 36 divisors (see below), whose sum is σ = 68626693918188. Its totient is φ = 9631816689600.

The previous prime is 28092798678977. The next prime is 28092798679021. The reversal of 28092798678980 is 8987689729082.

It can be written as a sum of positive squares in 2 ways, for example, as 12355281240064 + 15737517438916 = 3515008^2 + 3967054^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14333059571 + ... + 14333061530.

It is an arithmetic number, because the mean of its divisors is an integer number (1906297053283).

Almost surely, 2^{28092798678980} is an apocalyptic number.

28092798678980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28092798678980 is an abundant number, since it is smaller than the sum of its proper divisors (40533895239208).

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

28092798678980 is a wasteful number, since it uses less digits than its factorization.

28092798678980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28666121124 (or 28666121115 counting only the distinct ones).

The product of its (nonzero) digits is 3511517184, while the sum is 83.

The spelling of 28092798678980 in words is "twenty-eight trillion, ninety-two billion, seven hundred ninety-eight million, six hundred seventy-eight thousand, nine hundred eighty".