28280280102 has 16 divisors (see below), whose sum is σ = 56694913392. Its totient is φ = 9404367840.

The previous prime is 28280280101. The next prime is 28280280109. The reversal of 28280280102 is 20108208282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28280280101) 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, 5595313 + ... + 5600364.

It is an arithmetic number, because the mean of its divisors is an integer number (3543432087).

Almost surely, 2^28280280102 is an apocalyptic number.

28280280102 is an abundant number, since it is smaller than the sum of its proper divisors (28414633290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28280280102 is a wasteful number, since it uses less digits than its factorization.

28280280102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11196103.

The product of its (nonzero) digits is 8192, while the sum is 33.

Adding to 28280280102 its reverse (20108208282), we get a palindrome (48388488384).

The spelling of 28280280102 in words is "twenty-eight billion, two hundred eighty million, two hundred eighty thousand, one hundred two".