28710844146 has 40 divisors (see below), whose sum is σ = 64598393904. Its totient is φ = 9570268260.

The previous prime is 28710844117. The next prime is 28710844181. The reversal of 28710844146 is 64144801782.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 325300 + ... + 404031.

Almost surely, 2^28710844146 is an apocalyptic number.

28710844146 is an abundant number, since it is smaller than the sum of its proper divisors (35887549758).

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

28710844146 is an frugal number, since it uses more digits than its factorization.

28710844146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729360 (or 729336 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The spelling of 28710844146 in words is "twenty-eight billion, seven hundred ten million, eight hundred forty-four thousand, one hundred forty-six".