28590207405 has 32 divisors (see below), whose sum is σ = 47637918720. Its totient is φ = 14625623040.

The previous prime is 28590207403. The next prime is 28590207413. The reversal of 28590207405 is 50470209582.

It is not a de Polignac number, because 28590207405 - 2¹ = 28590207403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28590207403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219510 + ... + 324599.

It is an arithmetic number, because the mean of its divisors is an integer number (1488684960).

Almost surely, 2^28590207405 is an apocalyptic number.

It is an amenable number.

28590207405 is a deficient number, since it is larger than the sum of its proper divisors (19047711315).

28590207405 is a wasteful number, since it uses less digits than its factorization.

28590207405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544261.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 28590207405 in words is "twenty-eight billion, five hundred ninety million, two hundred seven thousand, four hundred five".