28604447673 has 16 divisors (see below), whose sum is σ = 41067207360. Its totient is φ = 17643685376.

The previous prime is 28604447647. The next prime is 28604447687. The reversal of 28604447673 is 37674440682.

It is a cyclic number.

It is not a de Polignac number, because 28604447673 - 2¹⁰ = 28604446649 is a prime.

It is a super-2 number, since 2×28604447673² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (28604447633) 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, 4750140 + ... + 4756157.

It is an arithmetic number, because the mean of its divisors is an integer number (2566700460).

Almost surely, 2^28604447673 is an apocalyptic number.

It is an amenable number.

28604447673 is a deficient number, since it is larger than the sum of its proper divisors (12462759687).

28604447673 is a wasteful number, since it uses less digits than its factorization.

28604447673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9506376.

The product of its (nonzero) digits is 5419008, while the sum is 51.

The spelling of 28604447673 in words is "twenty-eight billion, six hundred four million, four hundred forty-seven thousand, six hundred seventy-three".