28272754100 has 18 divisors (see below), whose sum is σ = 61351876614. Its totient is φ = 11309101600.

The previous prime is 28272754099. The next prime is 28272754127. The reversal of 28272754100 is 145727282.

It can be written as a sum of positive squares in 3 ways, for example, as 50098084 + 28222656016 = 7078^2 + 167996^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141363671 + ... + 141363870.

Almost surely, 2^28272754100 is an apocalyptic number.

28272754100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28272754100 is an abundant number, since it is smaller than the sum of its proper divisors (33079122514).

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

28272754100 is a wasteful number, since it uses less digits than its factorization.

28272754100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282727555 (or 282727548 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 38.

The spelling of 28272754100 in words is "twenty-eight billion, two hundred seventy-two million, seven hundred fifty-four thousand, one hundred".