869537211109 has 8 divisors (see below), whose sum is σ = 993779083328. Its totient is φ = 745300906560.

The previous prime is 869537211097. The next prime is 869537211149. The reversal of 869537211109 is 901112735968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-869537211109 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 (869537211149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051707 + ... + 1686760.

It is an arithmetic number, because the mean of its divisors is an integer number (124222385416).

Almost surely, 2^869537211109 is an apocalyptic number.

It is an amenable number.

869537211109 is a deficient number, since it is larger than the sum of its proper divisors (124241872219).

869537211109 is a wasteful number, since it uses less digits than its factorization.

869537211109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783835.

The product of its (nonzero) digits is 816480, while the sum is 52.

The spelling of 869537211109 in words is "eight hundred sixty-nine billion, five hundred thirty-seven million, two hundred eleven thousand, one hundred nine".