9809632464 has 40 divisors (see below), whose sum is σ = 25483145760. Its totient is φ = 3251607168.

The previous prime is 9809632453. The next prime is 9809632487. The reversal of 9809632464 is 4642369089.

It is a super-2 number, since 2×9809632464² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562267 + ... + 579450.

It is an arithmetic number, because the mean of its divisors is an integer number (637078644).

Almost surely, 2^9809632464 is an apocalyptic number.

It is an amenable number.

9809632464 is an abundant number, since it is smaller than the sum of its proper divisors (15673513296).

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

9809632464 is a wasteful number, since it uses less digits than its factorization.

9809632464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141907 (or 1141901 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 51.

The square root of 9809632464 is about 99043.5887071950. The cubic root of 9809632464 is about 2140.6758618732.

The spelling of 9809632464 in words is "nine billion, eight hundred nine million, six hundred thirty-two thousand, four hundred sixty-four".