28652768751490 has 64 divisors (see below), whose sum is σ = 56592181330272. Its totient is φ = 10379518156800.

The previous prime is 28652768751479. The next prime is 28652768751521. The reversal of 28652768751490 is 9415786725682.

It can be written as a sum of positive squares in 16 ways, for example, as 90510120801 + 28562258630689 = 300849^2 + 5344367^2 .

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287683500 + ... + 287783080.

Almost surely, 2^{28652768751490} is an apocalyptic number.

28652768751490 is a deficient number, since it is larger than the sum of its proper divisors (27939412578782).

28652768751490 is a wasteful number, since it uses less digits than its factorization.

28652768751490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141415.

The product of its (nonzero) digits is 406425600, while the sum is 70.

The spelling of 28652768751490 in words is "twenty-eight trillion, six hundred fifty-two billion, seven hundred sixty-eight million, seven hundred fifty-one thousand, four hundred ninety".