9657212130 has 24 divisors (see below), whose sum is σ = 25108751772. Its totient is φ = 2575256544.

The previous prime is 9657212129. The next prime is 9657212171. The reversal of 9657212130 is 312127569.

It can be written as a sum of positive squares in 2 ways, for example, as 8787375081 + 869837049 = 93741^2 + 29493^2 .

It is a super-2 number, since 2×9657212130² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53651089 + ... + 53651268.

Almost surely, 2^9657212130 is an apocalyptic number.

9657212130 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9657212130 is an abundant number, since it is smaller than the sum of its proper divisors (15451539642).

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

9657212130 is a wasteful number, since it uses less digits than its factorization.

9657212130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107302370 (or 107302367 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 9657212130 is about 98271.1154409066. The cubic root of 9657212130 is about 2129.5307899883.

Adding to 9657212130 its reverse (312127569), we get a palindrome (9969339699).

The spelling of 9657212130 in words is "nine billion, six hundred fifty-seven million, two hundred twelve thousand, one hundred thirty".