28269347108 has 12 divisors (see below), whose sum is σ = 49484764812. Its totient is φ = 14130842880.

The previous prime is 28269347101. The next prime is 28269347129. The reversal of 28269347108 is 80174396282.

It can be written as a sum of positive squares in 2 ways, for example, as 16369155364 + 11900191744 = 127942^2 + 109088^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28269347101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 941033 + ... + 970608.

It is an arithmetic number, because the mean of its divisors is an integer number (4123730401).

Almost surely, 2^28269347108 is an apocalyptic number.

It is an amenable number.

28269347108 is a deficient number, since it is larger than the sum of its proper divisors (21215417704).

28269347108 is a wasteful number, since it uses less digits than its factorization.

28269347108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915342 (or 1915340 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 28269347108 in words is "twenty-eight billion, two hundred sixty-nine million, three hundred forty-seven thousand, one hundred eight".