28585025630 has 24 divisors (see below), whose sum is σ = 59853544488. Its totient is φ = 9800580048.

The previous prime is 28585025629. The next prime is 28585025633. The reversal of 28585025630 is 3652058582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28585025633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29167904 + ... + 29168883.

It is an arithmetic number, because the mean of its divisors is an integer number (2493897687).

Almost surely, 2^28585025630 is an apocalyptic number.

28585025630 is an abundant number, since it is smaller than the sum of its proper divisors (31268518858).

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

28585025630 is a wasteful number, since it uses less digits than its factorization.

28585025630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58336808 (or 58336801 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 28585025630 in words is "twenty-eight billion, five hundred eighty-five million, twenty-five thousand, six hundred thirty".