9646531013 has 4 divisors (see below), whose sum is σ = 11024606880. Its totient is φ = 8268455148.

The previous prime is 9646531009. The next prime is 9646531019. The reversal of 9646531013 is 3101356469.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9646531013 - 2² = 9646531009 is a prime.

It is a super-3 number, since 3×9646531013³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9646531019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689037923 + ... + 689037936.

It is an arithmetic number, because the mean of its divisors is an integer number (2756151720).

Almost surely, 2^9646531013 is an apocalyptic number.

It is an amenable number.

9646531013 is a deficient number, since it is larger than the sum of its proper divisors (1378075867).

9646531013 is a wasteful number, since it uses less digits than its factorization.

9646531013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378075866.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 9646531013 is about 98216.7552559134. The cubic root of 9646531013 is about 2128.7453956747.

The spelling of 9646531013 in words is "nine billion, six hundred forty-six million, five hundred thirty-one thousand, thirteen".