9947151676 has 48 divisors (see below), whose sum is σ = 21758929920. Its totient is φ = 3865504320.

The previous prime is 9947151653. The next prime is 9947151679. The reversal of 9947151676 is 6761517499.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9947151679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78301 + ... + 161323.

It is an arithmetic number, because the mean of its divisors is an integer number (453311040).

Almost surely, 2^9947151676 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 9947151676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10879464960).

9947151676 is an abundant number, since it is smaller than the sum of its proper divisors (11811778244).

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

9947151676 is a wasteful number, since it uses less digits than its factorization.

9947151676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83434 (or 83432 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 55.

The square root of 9947151676 is about 99735.4083362574. The cubic root of 9947151676 is about 2150.6327091168.

The spelling of 9947151676 in words is "nine billion, nine hundred forty-seven million, one hundred fifty-one thousand, six hundred seventy-six".