9913686012 has 96 divisors (see below), whose sum is σ = 27105478400. Its totient is φ = 3124785600.

The previous prime is 9913685981. The next prime is 9913686019. The reversal of 9913686012 is 2106863199.

It is a happy number.

9913686012 is a `hidden beast` number, since 9 + 9 + 1 + 36 + 8 + 601 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9913686019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1167462 + ... + 1175922.

Almost surely, 2^9913686012 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 9913686012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13552739200).

9913686012 is an abundant number, since it is smaller than the sum of its proper divisors (17191792388).

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

9913686012 is a wasteful number, since it uses less digits than its factorization.

9913686012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9064 (or 9056 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 9913686012 is about 99567.4947560699. The cubic root of 9913686012 is about 2148.2181748366.

The spelling of 9913686012 in words is "nine billion, nine hundred thirteen million, six hundred eighty-six thousand, twelve".