28587171430 has 32 divisors (see below), whose sum is σ = 55317634560. Its totient is φ = 10602540000.

The previous prime is 28587171419. The next prime is 28587171433. The reversal of 28587171430 is 3417178582.

28587171430 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28587171433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1591696 + ... + 1609555.

It is an arithmetic number, because the mean of its divisors is an integer number (1728676080).

Almost surely, 2^28587171430 is an apocalyptic number.

28587171430 is a deficient number, since it is larger than the sum of its proper divisors (26730463130).

28587171430 is a wasteful number, since it uses less digits than its factorization.

28587171430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201324.

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 28587171430 in words is "twenty-eight billion, five hundred eighty-seven million, one hundred seventy-one thousand, four hundred thirty".