28644151102 has 64 divisors (see below), whose sum is σ = 53028670464. Its totient is φ = 11337131520.

The previous prime is 28644151069. The next prime is 28644151177. The reversal of 28644151102 is 20115144682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1551558 + ... + 1569910.

It is an arithmetic number, because the mean of its divisors is an integer number (828572976).

Almost surely, 2^28644151102 is an apocalyptic number.

28644151102 is a deficient number, since it is larger than the sum of its proper divisors (24384519362).

28644151102 is a wasteful number, since it uses less digits than its factorization.

28644151102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18553.

The product of its (nonzero) digits is 15360, while the sum is 34.

Adding to 28644151102 its reverse (20115144682), we get a palindrome (48759295784).

The spelling of 28644151102 in words is "twenty-eight billion, six hundred forty-four million, one hundred fifty-one thousand, one hundred two".