28908206148 has 24 divisors (see below), whose sum is σ = 67944838752. Its totient is φ = 9565731904.

The previous prime is 28908206141. The next prime is 28908206221. The reversal of 28908206148 is 84160280982.

It is a junction number, because it is equal to n+sod(n) for n = 28908206097 and 28908206106.

It is not an unprimeable number, because it can be changed into a prime (28908206141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8790390 + ... + 8793677.

It is an arithmetic number, because the mean of its divisors is an integer number (2831034948).

Almost surely, 2^28908206148 is an apocalyptic number.

It is an amenable number.

28908206148 is an abundant number, since it is smaller than the sum of its proper divisors (39036632604).

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

28908206148 is a wasteful number, since it uses less digits than its factorization.

28908206148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17584211 (or 17584209 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 28908206148 in words is "twenty-eight billion, nine hundred eight million, two hundred six thousand, one hundred forty-eight".