28572486330 has 128 divisors (see below), whose sum is σ = 76536990720. Its totient is φ = 6784128000.

The previous prime is 28572486247. The next prime is 28572486337. The reversal of 28572486330 is 3368427582.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28572486330.

It is not an unprimeable number, because it can be changed into a prime (28572486337) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8787205 + ... + 8790455.

It is an arithmetic number, because the mean of its divisors is an integer number (597945240).

Almost surely, 2^28572486330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28572486330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38268495360).

28572486330 is an abundant number, since it is smaller than the sum of its proper divisors (47964504390).

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

28572486330 is a wasteful number, since it uses less digits than its factorization.

28572486330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4204.

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 28572486330 in words is "twenty-eight billion, five hundred seventy-two million, four hundred eighty-six thousand, three hundred thirty".