9681379236 has 135 divisors (see below), whose sum is σ = 26436689643. Its totient is φ = 2987241840.

The previous prime is 9681379231. The next prime is 9681379289. The reversal of 9681379236 is 6329731869.

The square root of 9681379236 is 98394.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×9681379236² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9681379231) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 312302541 + ... + 312302571.

Almost surely, 2^9681379236 is an apocalyptic number.

9681379236 is the 98394-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9681379236

9681379236 is an abundant number, since it is smaller than the sum of its proper divisors (16755310407).

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

9681379236 is an equidigital number, since it uses as much as digits as its factorization.

9681379236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 59 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The cubic root of 9681379236 is about 2131.3056889030.

The spelling of 9681379236 in words is "nine billion, six hundred eighty-one million, three hundred seventy-nine thousand, two hundred thirty-six".