228012617528 has 8 divisors (see below), whose sum is σ = 427523657880. Its totient is φ = 114006308760.

The previous prime is 228012617513. The next prime is 228012617531. The reversal of 228012617528 is 825716210822.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14250788588 + ... + 14250788603.

It is an arithmetic number, because the mean of its divisors is an integer number (53440457235).

Almost surely, 2^228012617528 is an apocalyptic number.

It is an amenable number.

228012617528 is a deficient number, since it is larger than the sum of its proper divisors (199511040352).

228012617528 is a wasteful number, since it uses less digits than its factorization.

228012617528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28501577197 (or 28501577193 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 228012617528 in words is "two hundred twenty-eight billion, twelve million, six hundred seventeen thousand, five hundred twenty-eight".