9647790516 has 216 divisors, whose sum is σ = 30652057800. Its totient is φ = 2536095744.

The previous prime is 9647790433. The next prime is 9647790521. The reversal of 9647790516 is 6150977469.

It can be written as a sum of positive squares in 4 ways, for example, as 5336100 + 9642454416 = 2310^2 + 98196^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10296000 + ... + 10296936.

It is an arithmetic number, because the mean of its divisors is an integer number (141907675).

Almost surely, 2^9647790516 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 9647790516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15326028900).

9647790516 is an abundant number, since it is smaller than the sum of its proper divisors (21004267284).

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

9647790516 is a wasteful number, since it uses less digits than its factorization.

9647790516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423 (or 1411 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The square root of 9647790516 is about 98223.1669006859. The cubic root of 9647790516 is about 2128.8380384610.

The spelling of 9647790516 in words is "nine billion, six hundred forty-seven million, seven hundred ninety thousand, five hundred sixteen".