28164073908 has 48 divisors (see below), whose sum is σ = 66378299904. Its totient is φ = 9293562720.

The previous prime is 28164073907. The next prime is 28164073967. The reversal of 28164073908 is 80937046182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28164073907) 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 15 ways as a sum of consecutive naturals, for example, 1958641 + ... + 1972967.

It is an arithmetic number, because the mean of its divisors is an integer number (1382881248).

Almost surely, 2^28164073908 is an apocalyptic number.

It is an amenable number.

28164073908 is an abundant number, since it is smaller than the sum of its proper divisors (38214225996).

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

28164073908 is a wasteful number, since it uses less digits than its factorization.

28164073908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15972 (or 15970 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 28164073908 in words is "twenty-eight billion, one hundred sixty-four million, seventy-three thousand, nine hundred eight".