28114222568 has 8 divisors (see below), whose sum is σ = 52714167330. Its totient is φ = 14057111280.

The previous prime is 28114222541. The next prime is 28114222639. The reversal of 28114222568 is 86522241182.

It can be written as a sum of positive squares in only one way, i.e., 26739444484 + 1374778084 = 163522^2 + 37078^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1757138903 + ... + 1757138918.

Almost surely, 2^28114222568 is an apocalyptic number.

It is an amenable number.

28114222568 is a deficient number, since it is larger than the sum of its proper divisors (24599944762).

28114222568 is a wasteful number, since it uses less digits than its factorization.

28114222568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514277827 (or 3514277823 counting only the distinct ones).

The product of its digits is 122880, while the sum is 41.

The spelling of 28114222568 in words is "twenty-eight billion, one hundred fourteen million, two hundred twenty-two thousand, five hundred sixty-eight".