8513228428 has 24 divisors (see below), whose sum is σ = 15075093600. Its totient is φ = 4206119808.

The previous prime is 8513228419. The next prime is 8513228461. The reversal of 8513228428 is 8248223158.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630201 + ... + 643567.

It is an arithmetic number, because the mean of its divisors is an integer number (628128900).

Almost surely, 2^8513228428 is an apocalyptic number.

It is an amenable number.

8513228428 is a deficient number, since it is larger than the sum of its proper divisors (6561865172).

8513228428 is a wasteful number, since it uses less digits than its factorization.

8513228428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15249 (or 15247 counting only the distinct ones).

The product of its digits is 245760, while the sum is 43.

The square root of 8513228428 is about 92267.1579057250. The cubic root of 8513228428 is about 2041.8857057599.

The spelling of 8513228428 in words is "eight billion, five hundred thirteen million, two hundred twenty-eight thousand, four hundred twenty-eight".