28603202900 has 36 divisors (see below), whose sum is σ = 62079477180. Its totient is φ = 11439340800.

The previous prime is 28603202893. The next prime is 28603202917. The reversal of 28603202900 is 920230682.

It can be written as a sum of positive squares in 6 ways, for example, as 324072004 + 28279130896 = 18002^2 + 168164^2 .

It is a super-2 number, since 2×28603202900² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 666080 + ... + 707720.

Almost surely, 2^28603202900 is an apocalyptic number.

28603202900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28603202900 is an abundant number, since it is smaller than the sum of its proper divisors (33476274280).

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

28603202900 is a wasteful number, since it uses less digits than its factorization.

28603202900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48524 (or 48517 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 28603202900 in words is "twenty-eight billion, six hundred three million, two hundred two thousand, nine hundred".