28783206026 has 4 divisors (see below), whose sum is σ = 43174809042. Its totient is φ = 14391603012.

The previous prime is 28783205999. The next prime is 28783206041. The reversal of 28783206026 is 62060238782.

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., 25165063225 + 3618142801 = 158635^2 + 60151^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7195801505 + ... + 7195801508.

Almost surely, 2^28783206026 is an apocalyptic number.

28783206026 is a deficient number, since it is larger than the sum of its proper divisors (14391603016).

28783206026 is a wasteful number, since it uses less digits than its factorization.

28783206026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14391603015.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 28783206026 in words is "twenty-eight billion, seven hundred eighty-three million, two hundred six thousand, twenty-six".