869277199648 has 144 divisors (see below), whose sum is σ = 2028263908608. Its totient is φ = 364290854400.

The previous prime is 869277199627. The next prime is 869277199751. The reversal of 869277199648 is 846991772968.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43429963 + ... + 43449973.

It is an arithmetic number, because the mean of its divisors is an integer number (14085166032).

Almost surely, 2^869277199648 is an apocalyptic number.

869277199648 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869277199648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1014131954304).

869277199648 is an abundant number, since it is smaller than the sum of its proper divisors (1158986708960).

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

869277199648 is a wasteful number, since it uses less digits than its factorization.

869277199648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20919 (or 20900 counting only the distinct ones).

The product of its digits is 658409472, while the sum is 76.

The spelling of 869277199648 in words is "eight hundred sixty-nine billion, two hundred seventy-seven million, one hundred ninety-nine thousand, six hundred forty-eight".