9876544444442 has 32 divisors (see below), whose sum is σ = 16147764097920. Its totient is φ = 4503374631360.

The previous prime is 9876544444439. The next prime is 9876544444447. The reversal of 9876544444442 is 2444444456789.

It is a super-2 number, since 2×9876544444442² (a number of 27 digits) contains 22 as substring.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (9876544444447) 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, 3278909 + ... + 5523072.

It is an arithmetic number, because the mean of its divisors is an integer number (504617628060).

Almost surely, 2^{9876544444442} is an apocalyptic number.

9876544444442 is a deficient number, since it is larger than the sum of its proper divisors (6271219653478).

9876544444442 is a wasteful number, since it uses less digits than its factorization.

9876544444442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8802518.

The product of its digits is 495452160, while the sum is 65.

The spelling of 9876544444442 in words is "nine trillion, eight hundred seventy-six billion, five hundred forty-four million, four hundred forty-four thousand, four hundred forty-two".