28148112826 has 4 divisors (see below), whose sum is σ = 42222169242. Its totient is φ = 14074056412.

The previous prime is 28148112757. The next prime is 28148112827. The reversal of 28148112826 is 62821184182.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28106187201 + 41925625 = 167649^2 + 6475^2 .

It is not an unprimeable number, because it can be changed into a prime (28148112827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7037028205 + ... + 7037028208.

Almost surely, 2^28148112826 is an apocalyptic number.

28148112826 is a deficient number, since it is larger than the sum of its proper divisors (14074056416).

28148112826 is a wasteful number, since it uses less digits than its factorization.

28148112826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14074056415.

The product of its digits is 98304, while the sum is 43.

The spelling of 28148112826 in words is "twenty-eight billion, one hundred forty-eight million, one hundred twelve thousand, eight hundred twenty-six".