28061250304 has 18 divisors (see below), whose sum is σ = 56012886860. Its totient is φ = 14030625024.

The previous prime is 28061250293. The next prime is 28061250323. The reversal of 28061250304 is 40305216082.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54806874 + ... + 54807385.

Almost surely, 2^28061250304 is an apocalyptic number.

It is an amenable number.

28061250304 is a deficient number, since it is larger than the sum of its proper divisors (27951636556).

28061250304 is an equidigital number, since it uses as much as digits as its factorization.

28061250304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109614275 (or 109614261 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 28061250304 its reverse (40305216082), we get a palindrome (68366466386).

The spelling of 28061250304 in words is "twenty-eight billion, sixty-one million, two hundred fifty thousand, three hundred four".