28873160146 has 4 divisors (see below), whose sum is σ = 43309740222. Its totient is φ = 14436580072.

The previous prime is 28873160089. The next prime is 28873160149. The reversal of 28873160146 is 64106137882.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 27830580625 + 1042579521 = 166825^2 + 32289^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28873160096 and 28873160105.

It is not an unprimeable number, because it can be changed into a prime (28873160149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7218290035 + ... + 7218290038.

Almost surely, 2^28873160146 is an apocalyptic number.

28873160146 is a deficient number, since it is larger than the sum of its proper divisors (14436580076).

28873160146 is a wasteful number, since it uses less digits than its factorization.

28873160146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14436580075.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 28873160146 in words is "twenty-eight billion, eight hundred seventy-three million, one hundred sixty thousand, one hundred forty-six".