869115189453 has 64 divisors (see below), whose sum is σ = 1429211381760. Its totient is φ = 458448786432.

The previous prime is 869115189431. The next prime is 869115189463. The reversal of 869115189453 is 354981511968.

It is a happy number.

It is not a de Polignac number, because 869115189453 - 2²⁸ = 868846753997 is a prime.

It is a super-2 number, since 2×869115189453² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869115189463) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 75053818 + ... + 75065396.

It is an arithmetic number, because the mean of its divisors is an integer number (22331427840).

Almost surely, 2^869115189453 is an apocalyptic number.

It is an amenable number.

869115189453 is a deficient number, since it is larger than the sum of its proper divisors (560096192307).

869115189453 is a wasteful number, since it uses less digits than its factorization.

869115189453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15626.

The product of its digits is 9331200, while the sum is 60.

The spelling of 869115189453 in words is "eight hundred sixty-nine billion, one hundred fifteen million, one hundred eighty-nine thousand, four hundred fifty-three".