28084420460669 has 16 divisors (see below), whose sum is σ = 28719877536000. Its totient is φ = 27452888798400.

The previous prime is 28084420460549. The next prime is 28084420460699. The reversal of 28084420460669 is 96606402448082.

It is a cyclic number.

It is not a de Polignac number, because 28084420460669 - 2²⁸ = 28084152025213 is a prime.

It is a super-2 number, since 2×28084420460669² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28084420460699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205450994 + ... + 205587644.

It is an arithmetic number, because the mean of its divisors is an integer number (1794992346000).

Almost surely, 2^{28084420460669} is an apocalyptic number.

It is an amenable number.

28084420460669 is a deficient number, since it is larger than the sum of its proper divisors (635457075331).

28084420460669 is a wasteful number, since it uses less digits than its factorization.

28084420460669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150980.

The product of its (nonzero) digits is 31850496, while the sum is 59.

The spelling of 28084420460669 in words is "twenty-eight trillion, eighty-four billion, four hundred twenty million, four hundred sixty thousand, six hundred sixty-nine".