28571441385 has 32 divisors (see below), whose sum is σ = 47051988480. Its totient is φ = 14798534400.

The previous prime is 28571441351. The next prime is 28571441407. The reversal of 28571441385 is 58314417582.

It is not a de Polignac number, because 28571441385 - 2⁶ = 28571441321 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125346 + ... + 269915.

It is an arithmetic number, because the mean of its divisors is an integer number (1470374640).

Almost surely, 2^28571441385 is an apocalyptic number.

It is an amenable number.

28571441385 is a deficient number, since it is larger than the sum of its proper divisors (18480547095).

28571441385 is a wasteful number, since it uses less digits than its factorization.

28571441385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395409.

The product of its digits is 1075200, while the sum is 48.

The spelling of 28571441385 in words is "twenty-eight billion, five hundred seventy-one million, four hundred forty-one thousand, three hundred eighty-five".