869101947984 has 80 divisors (see below), whose sum is σ = 2266555074048. Its totient is φ = 286943519616.

The previous prime is 869101947941. The next prime is 869101948019. The reversal of 869101947984 is 489749101968.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40702399 + ... + 40723745.

Almost surely, 2^869101947984 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 869101947984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1133277537024).

869101947984 is an abundant number, since it is smaller than the sum of its proper divisors (1397453126064).

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

869101947984 is a wasteful number, since it uses less digits than its factorization.

869101947984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29392 (or 29386 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 66.

The spelling of 869101947984 in words is "eight hundred sixty-nine billion, one hundred one million, nine hundred forty-seven thousand, nine hundred eighty-four".