9993649536 has 128 divisors (see below), whose sum is σ = 31764146400. Its totient is φ = 3074955264.

The previous prime is 9993649493. The next prime is 9993649537. The reversal of 9993649536 is 6359463999.

9993649536 is a `hidden beast` number, since 9 + 9 + 93 + 6 + 4 + 9 + 536 = 666.

9993649536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9993649537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66291 + ... + 156146.

Almost surely, 2^9993649536 is an apocalyptic number.

9993649536 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

9993649536 is an abundant number, since it is smaller than the sum of its proper divisors (21770496864).

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

9993649536 is a wasteful number, since it uses less digits than its factorization.

9993649536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222473 (or 222455 counting only the distinct ones).

The product of its digits is 42515280, while the sum is 63.

The square root of 9993649536 is about 99968.2426373496. The cubic root of 9993649536 is about 2153.9785381277.

The spelling of 9993649536 in words is "nine billion, nine hundred ninety-three million, six hundred forty-nine thousand, five hundred thirty-six".