28736225230 has 32 divisors (see below), whose sum is σ = 55199149056. Its totient is φ = 10733151744.

The previous prime is 28736225197. The next prime is 28736225267. The reversal of 28736225230 is 3252263782.

It is a happy number.

It is a super-3 number, since 3×28736225230³ (a number of 32 digits) contains 333 as substring.

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, 643909 + ... + 687088.

It is an arithmetic number, because the mean of its divisors is an integer number (1724973408).

Almost surely, 2^28736225230 is an apocalyptic number.

28736225230 is a deficient number, since it is larger than the sum of its proper divisors (26462923826).

28736225230 is a wasteful number, since it uses less digits than its factorization.

28736225230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331148.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 28736225230 in words is "twenty-eight billion, seven hundred thirty-six million, two hundred twenty-five thousand, two hundred thirty".