28316475078 has 32 divisors (see below), whose sum is σ = 57513131136. Its totient is φ = 9293211648.

The previous prime is 28316475043. The next prime is 28316475097. The reversal of 28316475078 is 87057461382.

It is a self number, because there is not a number n which added to its sum of digits gives 28316475078.

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, 30651 + ... + 239942.

It is an arithmetic number, because the mean of its divisors is an integer number (1797285348).

Almost surely, 2^28316475078 is an apocalyptic number.

28316475078 is an abundant number, since it is smaller than the sum of its proper divisors (29196656058).

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

28316475078 is a wasteful number, since it uses less digits than its factorization.

28316475078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270868.

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 28316475078 in words is "twenty-eight billion, three hundred sixteen million, four hundred seventy-five thousand, seventy-eight".