28260851085078 has 32 divisors (see below), whose sum is σ = 58479517404000. Its totient is φ = 9094078834176.

The previous prime is 28260851085067. The next prime is 28260851085157. The reversal of 28260851085078 is 87058015806282.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11048803 + ... + 13364046.

It is an arithmetic number, because the mean of its divisors is an integer number (1827484918875).

Almost surely, 2^{28260851085078} is an apocalyptic number.

28260851085078 is an abundant number, since it is smaller than the sum of its proper divisors (30218666318922).

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

28260851085078 is a wasteful number, since it uses less digits than its factorization.

28260851085078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24419536.

The product of its (nonzero) digits is 17203200, while the sum is 60.

The spelling of 28260851085078 in words is "twenty-eight trillion, two hundred sixty billion, eight hundred fifty-one million, eighty-five thousand, seventy-eight".