9621676512 has 144 divisors (see below), whose sum is σ = 31478533632. Its totient is φ = 2730758400.

The previous prime is 9621676511. The next prime is 9621676523. The reversal of 9621676512 is 2156761269.

9621676512 is a `hidden beast` number, since 9 + 62 + 1 + 6 + 76 + 512 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×9621676512² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9621676511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288613 + ... + 320219.

It is an arithmetic number, because the mean of its divisors is an integer number (218600928).

Almost surely, 2^9621676512 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 9621676512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15739266816).

9621676512 is an abundant number, since it is smaller than the sum of its proper divisors (21856857120).

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

9621676512 is a wasteful number, since it uses less digits than its factorization.

9621676512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31781 (or 31770 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 9621676512 is about 98090.1448260731. The cubic root of 9621676512 is about 2126.9155700109.

The spelling of 9621676512 in words is "nine billion, six hundred twenty-one million, six hundred seventy-six thousand, five hundred twelve".