28028005050 has 48 divisors (see below), whose sum is σ = 71388100512. Its totient is φ = 7272129600.

The previous prime is 28028005037. The next prime is 28028005067. The reversal of 28028005050 is 5050082082.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 28028004999 and 28028005017.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2519496 + ... + 2530595.

It is an arithmetic number, because the mean of its divisors is an integer number (1487252094).

Almost surely, 2^28028005050 is an apocalyptic number.

28028005050 is an abundant number, since it is smaller than the sum of its proper divisors (43360095462).

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

28028005050 is a wasteful number, since it uses less digits than its factorization.

28028005050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050143 (or 5050138 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The spelling of 28028005050 in words is "twenty-eight billion, twenty-eight million, five thousand, fifty".