9888749662 has 32 divisors (see below), whose sum is σ = 16251891840. Its totient is φ = 4475409120.

The previous prime is 9888749657. The next prime is 9888749723. The reversal of 9888749662 is 2669478889.

9888749662 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9888749662² (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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7201608 + ... + 7202980.

It is an arithmetic number, because the mean of its divisors is an integer number (507871620).

Almost surely, 2^9888749662 is an apocalyptic number.

9888749662 is a deficient number, since it is larger than the sum of its proper divisors (6363142178).

9888749662 is a wasteful number, since it uses less digits than its factorization.

9888749662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568.

The product of its digits is 83607552, while the sum is 67.

The square root of 9888749662 is about 99442.1925643235. The cubic root of 9888749662 is about 2146.4154919021.

The spelling of 9888749662 in words is "nine billion, eight hundred eighty-eight million, seven hundred forty-nine thousand, six hundred sixty-two".