884138653541 has 12 divisors (see below), whose sum is σ = 1046577352716. Its totient is φ = 741934533120.

The previous prime is 884138653477. The next prime is 884138653553. The reversal of 884138653541 is 145356831488.

It can be written as a sum of positive squares in 2 ways, for example, as 60382741441 + 823755912100 = 245729^2 + 907610^2 .

It is not a de Polignac number, because 884138653541 - 2⁶ = 884138653477 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 (884138653561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281034236 + ... + 281037381.

It is an arithmetic number, because the mean of its divisors is an integer number (87214779393).

Almost surely, 2^884138653541 is an apocalyptic number.

It is an amenable number.

884138653541 is a deficient number, since it is larger than the sum of its proper divisors (162438699175).

884138653541 is a wasteful number, since it uses less digits than its factorization.

884138653541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562071652 (or 562071641 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 56.

The spelling of 884138653541 in words is "eight hundred eighty-four billion, one hundred thirty-eight million, six hundred fifty-three thousand, five hundred forty-one".