869437537668 has 192 divisors, whose sum is σ = 2662729574400. Its totient is φ = 240196337280.

The previous prime is 869437537649. The next prime is 869437537681. The reversal of 869437537668 is 866735734968.

869437537668 is a `hidden beast` number, since 8 + 69 + 437 + 5 + 3 + 76 + 68 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 869437537596 and 869437537605.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2561071 + ... + 2880617.

It is an arithmetic number, because the mean of its divisors is an integer number (13868383200).

Almost surely, 2^869437537668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869437537668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331364787200).

869437537668 is an abundant number, since it is smaller than the sum of its proper divisors (1793292036732).

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

869437537668 is a wasteful number, since it uses less digits than its factorization.

869437537668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319687 (or 319679 counting only the distinct ones).

The product of its digits is 1097349120, while the sum is 72.

The spelling of 869437537668 in words is "eight hundred sixty-nine billion, four hundred thirty-seven million, five hundred thirty-seven thousand, six hundred sixty-eight".