28628411201 has 8 divisors (see below), whose sum is σ = 30834159720. Its totient is φ = 26423171712.

The previous prime is 28628411143. The next prime is 28628411209. The reversal of 28628411201 is 10211482682.

It can be written as a sum of positive squares in 4 ways, for example, as 555073600 + 28073337601 = 23560^2 + 167551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28628411201 - 2⁶ = 28628411137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28628411209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6170 + ... + 239363.

It is an arithmetic number, because the mean of its divisors is an integer number (3854269965).

Almost surely, 2^28628411201 is an apocalyptic number.

It is an amenable number.

28628411201 is a deficient number, since it is larger than the sum of its proper divisors (2205748519).

28628411201 is a wasteful number, since it uses less digits than its factorization.

28628411201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254515.

The product of its (nonzero) digits is 12288, while the sum is 35.

Adding to 28628411201 its reverse (10211482682), we get a palindrome (38839893883).

The spelling of 28628411201 in words is "twenty-eight billion, six hundred twenty-eight million, four hundred eleven thousand, two hundred one".