28627156530 has 192 divisors, whose sum is σ = 88247577600. Its totient is φ = 6302499840.

The previous prime is 28627156499. The next prime is 28627156543. The reversal of 28627156530 is 3565172682.

28627156530 is a `hidden beast` number, since 2 + 8 + 62 + 7 + 1 + 56 + 530 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2033556 + ... + 2047584.

It is an arithmetic number, because the mean of its divisors is an integer number (459622800).

Almost surely, 2^28627156530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28627156530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44123788800).

28627156530 is an abundant number, since it is smaller than the sum of its proper divisors (59620421070).

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

28627156530 is a wasteful number, since it uses less digits than its factorization.

28627156530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14169 (or 14166 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 28627156530 in words is "twenty-eight billion, six hundred twenty-seven million, one hundred fifty-six thousand, five hundred thirty".