28060624428 has 48 divisors (see below), whose sum is σ = 65691709440. Its totient is φ = 9322602624.

The previous prime is 28060624421. The next prime is 28060624429. The reversal of 28060624428 is 82442606082.

It is a self number, because there is not a number n which added to its sum of digits gives 28060624428.

It is not an unprimeable number, because it can be changed into a prime (28060624421) 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, 6046533 + ... + 6051171.

It is an arithmetic number, because the mean of its divisors is an integer number (1368577280).

Almost surely, 2^28060624428 is an apocalyptic number.

It is an amenable number.

28060624428 is an abundant number, since it is smaller than the sum of its proper divisors (37631085012).

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

28060624428 is a wasteful number, since it uses less digits than its factorization.

28060624428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6206 (or 6204 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 42.

The spelling of 28060624428 in words is "twenty-eight billion, sixty million, six hundred twenty-four thousand, four hundred twenty-eight".