28429012673 has 16 divisors (see below), whose sum is σ = 29560885200. Its totient is φ = 27320832000.

The previous prime is 28429012663. The next prime is 28429012687. The reversal of 28429012673 is 37621092482.

It can be written as a sum of positive squares in 8 ways, for example, as 20584369 + 28408428304 = 4537^2 + 168548^2 .

It is a cyclic number.

It is not a de Polignac number, because 28429012673 - 2⁶ = 28429012609 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28429012663) 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, 798353 + ... + 833201.

It is an arithmetic number, because the mean of its divisors is an integer number (1847555325).

Almost surely, 2^28429012673 is an apocalyptic number.

It is an amenable number.

28429012673 is a deficient number, since it is larger than the sum of its proper divisors (1131872527).

28429012673 is a wasteful number, since it uses less digits than its factorization.

28429012673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35188.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 28429012673 in words is "twenty-eight billion, four hundred twenty-nine million, twelve thousand, six hundred seventy-three".