28866872326 has 4 divisors (see below), whose sum is σ = 43300308492. Its totient is φ = 14433436162.

The previous prime is 28866872303. The next prime is 28866872327. The reversal of 28866872326 is 62327866882.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28866872327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7216718080 + ... + 7216718083.

It is an arithmetic number, because the mean of its divisors is an integer number (10825077123).

Almost surely, 2^28866872326 is an apocalyptic number.

28866872326 is a deficient number, since it is larger than the sum of its proper divisors (14433436166).

28866872326 is a wasteful number, since it uses less digits than its factorization.

28866872326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14433436165.

The product of its digits is 18579456, while the sum is 58.

The spelling of 28866872326 in words is "twenty-eight billion, eight hundred sixty-six million, eight hundred seventy-two thousand, three hundred twenty-six".