28700603284 has 6 divisors (see below), whose sum is σ = 50226055754. Its totient is φ = 14350301640.

The previous prime is 28700603213. The next prime is 28700603287. The reversal of 28700603284 is 48230600782.

It can be written as a sum of positive squares in only one way, i.e., 28688906884 + 11696400 = 169378^2 + 3420^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28700603287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3587575407 + ... + 3587575414.

Almost surely, 2^28700603284 is an apocalyptic number.

It is an amenable number.

28700603284 is a deficient number, since it is larger than the sum of its proper divisors (21525452470).

28700603284 is a wasteful number, since it uses less digits than its factorization.

28700603284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7175150825 (or 7175150823 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 28700603284 in words is "twenty-eight billion, seven hundred million, six hundred three thousand, two hundred eighty-four".