9887597165922 has 32 divisors (see below), whose sum is σ = 23789707468800. Its totient is φ = 2676342089808.

The previous prime is 9887597165893. The next prime is 9887597165923. The reversal of 9887597165922 is 2295617957889.

It is a super-2 number, since 2×9887597165922² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9887597165923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6195235522 + ... + 6195237117.

It is an arithmetic number, because the mean of its divisors is an integer number (743428358400).

Almost surely, 2^{9887597165922} is an apocalyptic number.

9887597165922 is an abundant number, since it is smaller than the sum of its proper divisors (13902110302878).

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

9887597165922 is a wasteful number, since it uses less digits than its factorization.

9887597165922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12390472670.

The product of its digits is 1371686400, while the sum is 78.

The spelling of 9887597165922 in words is "nine trillion, eight hundred eighty-seven billion, five hundred ninety-seven million, one hundred sixty-five thousand, nine hundred twenty-two".