9947688692 has 48 divisors (see below), whose sum is σ = 18815811840. Its totient is φ = 4587652608.

The previous prime is 9947688677. The next prime is 9947688727. The reversal of 9947688692 is 2968867499.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2620748 + ... + 2624540.

It is an arithmetic number, because the mean of its divisors is an integer number (391996080).

Almost surely, 2^9947688692 is an apocalyptic number.

9947688692 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

9947688692 is a deficient number, since it is larger than the sum of its proper divisors (8868123148).

9947688692 is a wasteful number, since it uses less digits than its factorization.

9947688692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832 (or 4830 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 68.

The square root of 9947688692 is about 99738.1005032681. The cubic root of 9947688692 is about 2150.6714104265.

The spelling of 9947688692 in words is "nine billion, nine hundred forty-seven million, six hundred eighty-eight thousand, six hundred ninety-two".