28662612222 has 16 divisors (see below), whose sum is σ = 60342341760. Its totient is φ = 9051351192.

The previous prime is 28662612197. The next prime is 28662612227. The reversal of 28662612222 is 22221626682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28662612227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125713098 + ... + 125713325.

It is an arithmetic number, because the mean of its divisors is an integer number (3771396360).

Almost surely, 2^28662612222 is an apocalyptic number.

28662612222 is an abundant number, since it is smaller than the sum of its proper divisors (31679729538).

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

28662612222 is a wasteful number, since it uses less digits than its factorization.

28662612222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251426447.

The product of its digits is 110592, while the sum is 39.

The spelling of 28662612222 in words is "twenty-eight billion, six hundred sixty-two million, six hundred twelve thousand, two hundred twenty-two".