28616132128 has 12 divisors (see below), whose sum is σ = 56338010190. Its totient is φ = 14308066048.

The previous prime is 28616132101. The next prime is 28616132131. The reversal of 28616132128 is 82123161682.

It can be written as a sum of positive squares in only one way, i.e., 18239042704 + 10377089424 = 135052^2 + 101868^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447127033 + ... + 447127096.

Almost surely, 2^28616132128 is an apocalyptic number.

It is an amenable number.

28616132128 is a deficient number, since it is larger than the sum of its proper divisors (27721878062).

28616132128 is an equidigital number, since it uses as much as digits as its factorization.

28616132128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894254139 (or 894254131 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The spelling of 28616132128 in words is "twenty-eight billion, six hundred sixteen million, one hundred thirty-two thousand, one hundred twenty-eight".