28632214857289 has 4 divisors (see below), whose sum is σ = 28803665245824. Its totient is φ = 28460764468756.

The previous prime is 28632214857287. The next prime is 28632214857353. The reversal of 28632214857289 is 98275841223682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28632214857289 - 2¹ = 28632214857287 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28632214857287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85725194017 + ... + 85725194350.

It is an arithmetic number, because the mean of its divisors is an integer number (7200916311456).

Almost surely, 2^{28632214857289} is an apocalyptic number.

It is an amenable number.

28632214857289 is a deficient number, since it is larger than the sum of its proper divisors (171450388535).

28632214857289 is a wasteful number, since it uses less digits than its factorization.

28632214857289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171450388534.

The product of its digits is 185794560, while the sum is 67.

The spelling of 28632214857289 in words is "twenty-eight trillion, six hundred thirty-two billion, two hundred fourteen million, eight hundred fifty-seven thousand, two hundred eighty-nine".