28160573389 has 16 divisors (see below), whose sum is σ = 32122037808. Its totient is φ = 24456655872.

The previous prime is 28160573377. The next prime is 28160573401. The reversal of 28160573389 is 98337506182.

It is an interprime number because it is at equal distance from previous prime (28160573377) and next prime (28160573401).

It can be written as a sum of positive squares in 8 ways, for example, as 780252489 + 27380320900 = 27933^2 + 165470^2 .

It is not a de Polignac number, because 28160573389 - 2⁷ = 28160573261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28160573359) 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, 650199 + ... + 692155.

It is an arithmetic number, because the mean of its divisors is an integer number (2007627363).

Almost surely, 2^28160573389 is an apocalyptic number.

It is an amenable number.

28160573389 is a deficient number, since it is larger than the sum of its proper divisors (3961464419).

28160573389 is a wasteful number, since it uses less digits than its factorization.

28160573389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45024.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 28160573389 in words is "twenty-eight billion, one hundred sixty million, five hundred seventy-three thousand, three hundred eighty-nine".