28027750530 has 64 divisors (see below), whose sum is σ = 72480417408. Its totient is φ = 6895380480.

The previous prime is 28027750529. The next prime is 28027750537. The reversal of 28027750530 is 3505772082.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (28027750537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 734482 + ... + 771698.

It is an arithmetic number, because the mean of its divisors is an integer number (1132506522).

Almost surely, 2^28027750530 is an apocalyptic number.

28027750530 is an abundant number, since it is smaller than the sum of its proper divisors (44452666878).

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

28027750530 is a wasteful number, since it uses less digits than its factorization.

28027750530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39171.

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 28027750530 in words is "twenty-eight billion, twenty-seven million, seven hundred fifty thousand, five hundred thirty".