28504031382 has 40 divisors (see below), whose sum is σ = 67231738200. Its totient is φ = 9001272096.

The previous prime is 28504031327. The next prime is 28504031429. The reversal of 28504031382 is 28313040582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4627207 + ... + 4633362.

It is an arithmetic number, because the mean of its divisors is an integer number (1680793455).

Almost surely, 2^28504031382 is an apocalyptic number.

28504031382 is an abundant number, since it is smaller than the sum of its proper divisors (38727706818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28504031382 is a wasteful number, since it uses less digits than its factorization.

28504031382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9260602 (or 9260593 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 28504031382 in words is "twenty-eight billion, five hundred four million, thirty-one thousand, three hundred eighty-two".