9919605632 has 16 divisors (see below), whose sum is σ = 19761714600. Its totient is φ = 4959802752.

The previous prime is 9919605611. The next prime is 9919605679. The reversal of 9919605632 is 2365069199.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×9919605632² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38748332 + ... + 38748587.

Almost surely, 2^9919605632 is an apocalyptic number.

It is an amenable number.

9919605632 is a deficient number, since it is larger than the sum of its proper divisors (9842108968).

9919605632 is an equidigital number, since it uses as much as digits as its factorization.

9919605632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77496933 (or 77496921 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 50.

The square root of 9919605632 is about 99597.2169892312. The cubic root of 9919605632 is about 2148.6456682026.

The spelling of 9919605632 in words is "nine billion, nine hundred nineteen million, six hundred five thousand, six hundred thirty-two".