28000052800530 has 32 divisors (see below), whose sum is σ = 67200390716544. Its totient is φ = 7466651414016.

The previous prime is 28000052800507. The next prime is 28000052800589. The reversal of 28000052800530 is 3500825000082.

It is a junction number, because it is equal to n+sod(n) for n = 28000052800491 and 28000052800500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6560514 + ... + 9951906.

It is an arithmetic number, because the mean of its divisors is an integer number (2100012209892).

Almost surely, 2^{28000052800530} is an apocalyptic number.

28000052800530 is an abundant number, since it is smaller than the sum of its proper divisors (39200337916014).

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

28000052800530 is a wasteful number, since it uses less digits than its factorization.

28000052800530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666610.

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 28000052800530 in words is "twenty-eight trillion, fifty-two million, eight hundred thousand, five hundred thirty".