9691939536 has 40 divisors (see below), whose sum is σ = 25042545984. Its totient is φ = 3229996800.

The previous prime is 9691939483. The next prime is 9691939559. The reversal of 9691939536 is 6359391969.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 9691939536.

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, 261045 + ... + 295851.

Almost surely, 2^9691939536 is an apocalyptic number.

It is an amenable number.

9691939536 is an abundant number, since it is smaller than the sum of its proper divisors (15350606448).

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

9691939536 is a wasteful number, since it uses less digits than its factorization.

9691939536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40619 (or 40613 counting only the distinct ones).

The product of its digits is 10628820, while the sum is 60.

The square root of 9691939536 is about 98447.6487073206. The cubic root of 9691939536 is about 2132.0803391658.

The spelling of 9691939536 in words is "nine billion, six hundred ninety-one million, nine hundred thirty-nine thousand, five hundred thirty-six".