9661626734 has 16 divisors (see below), whose sum is σ = 14604831360. Its totient is φ = 4793388600.

The previous prime is 9661626731. The next prime is 9661626743. The reversal of 9661626734 is 4376261669.

It is a super-2 number, since 2×9661626734² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9661626731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548159 + ... + 565509.

It is an arithmetic number, because the mean of its divisors is an integer number (912801960).

Almost surely, 2^9661626734 is an apocalyptic number.

9661626734 is a deficient number, since it is larger than the sum of its proper divisors (4943204626).

9661626734 is a wasteful number, since it uses less digits than its factorization.

9661626734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19495.

The product of its digits is 1959552, while the sum is 50.

The square root of 9661626734 is about 98293.5742253785. The cubic root of 9661626734 is about 2129.8552315518.

The spelling of 9661626734 in words is "nine billion, six hundred sixty-one million, six hundred twenty-six thousand, seven hundred thirty-four".