28525769230 has 32 divisors (see below), whose sum is σ = 58730134464. Its totient is φ = 9772171776.

The previous prime is 28525769219. The next prime is 28525769243. The reversal of 28525769230 is 3296752582.

It is a happy number.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83067 + ... + 252886.

It is an arithmetic number, because the mean of its divisors is an integer number (1835316702).

Almost surely, 2^28525769230 is an apocalyptic number.

28525769230 is an abundant number, since it is smaller than the sum of its proper divisors (30204365234).

28525769230 is a wasteful number, since it uses less digits than its factorization.

28525769230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337180.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 28525769230 in words is "twenty-eight billion, five hundred twenty-five million, seven hundred sixty-nine thousand, two hundred thirty".