28028052555012 has 48 divisors (see below), whose sum is σ = 72667095379200. Its totient is φ = 9342456107040.

The previous prime is 28028052555001. The next prime is 28028052555017. The reversal of 28028052555012 is 21055525082082.

28028052555012 is a `hidden beast` number, since 2 + 8 + 0 + 2 + 80 + 5 + 2 + 5 + 550 + 12 = 666.

It is not an unprimeable number, because it can be changed into a prime (28028052555017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1305814 + ... + 7600082.

It is an arithmetic number, because the mean of its divisors is an integer number (1513897820400).

Almost surely, 2^{28028052555012} is an apocalyptic number.

It is an amenable number.

28028052555012 is an abundant number, since it is smaller than the sum of its proper divisors (44639042824188).

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

28028052555012 is a wasteful number, since it uses less digits than its factorization.

28028052555012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6335513 (or 6335505 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 45.

The spelling of 28028052555012 in words is "twenty-eight trillion, twenty-eight billion, fifty-two million, five hundred fifty-five thousand, twelve".