9646491424 has 36 divisors (see below), whose sum is σ = 20113455222. Its totient is φ = 4538447360.

The previous prime is 9646491419. The next prime is 9646491451. The reversal of 9646491424 is 4241946469.

It can be written as a sum of positive squares in only one way, i.e., 7093008400 + 2553483024 = 84220^2 + 50532^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2288679 + ... + 2292889.

Almost surely, 2^9646491424 is an apocalyptic number.

It is an amenable number.

9646491424 is an abundant number, since it is smaller than the sum of its proper divisors (10466963798).

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

9646491424 is an frugal number, since it uses more digits than its factorization.

9646491424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8449 (or 4230 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 49.

The square root of 9646491424 is about 98216.5537167742. The cubic root of 9646491424 is about 2128.7424835738.

The spelling of 9646491424 in words is "nine billion, six hundred forty-six million, four hundred ninety-one thousand, four hundred twenty-four".