28677950222 has 4 divisors (see below), whose sum is σ = 43016925336. Its totient is φ = 14338975110.

The previous prime is 28677950221. The next prime is 28677950237. The reversal of 28677950222 is 22205977682.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28677950221) 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 as a sum of consecutive naturals, namely, 7169487554 + ... + 7169487557.

It is an arithmetic number, because the mean of its divisors is an integer number (10754231334).

Almost surely, 2^28677950222 is an apocalyptic number.

28677950222 is a deficient number, since it is larger than the sum of its proper divisors (14338975114).

28677950222 is a wasteful number, since it uses less digits than its factorization.

28677950222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14338975113.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 28677950222 in words is "twenty-eight billion, six hundred seventy-seven million, nine hundred fifty thousand, two hundred twenty-two".