28015148128 has 48 divisors (see below), whose sum is σ = 60183312336. Its totient is φ = 12731107840.

The previous prime is 28015148123. The next prime is 28015148129. The reversal of 28015148128 is 82184151082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28015148123) 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, 2166450 + ... + 2179342.

It is an arithmetic number, because the mean of its divisors is an integer number (1253819007).

Almost surely, 2^28015148128 is an apocalyptic number.

It is an amenable number.

28015148128 is an abundant number, since it is smaller than the sum of its proper divisors (32168164208).

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

28015148128 is a wasteful number, since it uses less digits than its factorization.

28015148128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19087 (or 19079 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 40.

The spelling of 28015148128 in words is "twenty-eight billion, fifteen million, one hundred forty-eight thousand, one hundred twenty-eight".