28741658272 has 12 divisors (see below), whose sum is σ = 56585139786. Its totient is φ = 14370829120.

The previous prime is 28741658233. The next prime is 28741658273. The reversal of 28741658272 is 27285614782.

It can be written as a sum of positive squares in only one way, i.e., 15534132496 + 13207525776 = 124636^2 + 114924^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28741658273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449088379 + ... + 449088442.

Almost surely, 2^28741658272 is an apocalyptic number.

It is an amenable number.

28741658272 is a deficient number, since it is larger than the sum of its proper divisors (27843481514).

28741658272 is an equidigital number, since it uses as much as digits as its factorization.

28741658272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898176831 (or 898176823 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 52.

The spelling of 28741658272 in words is "twenty-eight billion, seven hundred forty-one million, six hundred fifty-eight thousand, two hundred seventy-two".