28988719222 has 32 divisors (see below), whose sum is σ = 44226224064. Its totient is φ = 14249088000.

The previous prime is 28988719219. The next prime is 28988719229. The reversal of 28988719222 is 22291788982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28988719229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22247023 + ... + 22248325.

It is an arithmetic number, because the mean of its divisors is an integer number (1382069502).

Almost surely, 2^28988719222 is an apocalyptic number.

28988719222 is a deficient number, since it is larger than the sum of its proper divisors (15237504842).

28988719222 is a wasteful number, since it uses less digits than its factorization.

28988719222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104.

The product of its digits is 4644864, while the sum is 58.

The spelling of 28988719222 in words is "twenty-eight billion, nine hundred eighty-eight million, seven hundred nineteen thousand, two hundred twenty-two".