28601650530 has 64 divisors (see below), whose sum is σ = 76819881600. Its totient is φ = 7572225600.

The previous prime is 28601650523. The next prime is 28601650531. The reversal of 28601650530 is 3505610682.

28601650530 is a `hidden beast` number, since 2 + 8 + 60 + 1 + 65 + 0 + 530 = 666.

It is not an unprimeable number, because it can be changed into a prime (28601650531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343521 + ... + 418580.

It is an arithmetic number, because the mean of its divisors is an integer number (1200310650).

Almost surely, 2^28601650530 is an apocalyptic number.

28601650530 is an abundant number, since it is smaller than the sum of its proper divisors (48218231070).

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

28601650530 is a wasteful number, since it uses less digits than its factorization.

28601650530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762256 (or 762250 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 28601650530 in words is "twenty-eight billion, six hundred one million, six hundred fifty thousand, five hundred thirty".