9999926411140 has 96 divisors (see below), whose sum is σ = 22673309218560. Its totient is φ = 3693341836800.

The previous prime is 9999926411131. The next prime is 9999926411141. The reversal of 9999926411140 is 411146299999.

9999926411140 is a nontrivial binomial coefficient, being equal to C(4472120, 2).

It is not an unprimeable number, because it can be changed into a prime (9999926411141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64768635 + ... + 64922845.

It is an arithmetic number, because the mean of its divisors is an integer number (236180304360).

Almost surely, 2^{9999926411140} is an apocalyptic number.

9999926411140 is the 4472119-th triangular number and also the 2236060-th hexagonal number.

9999926411140 is the 1490707-th centered nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9999926411140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11336654609280).

9999926411140 is an abundant number, since it is smaller than the sum of its proper divisors (12673382807420).

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

9999926411140 is a wasteful number, since it uses less digits than its factorization.

9999926411140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159133 (or 159131 counting only the distinct ones).

The product of its (nonzero) digits is 11337408, while the sum is 64.

The spelling of 9999926411140 in words is "nine trillion, nine hundred ninety-nine billion, nine hundred twenty-six million, four hundred eleven thousand, one hundred forty".