9981340774276 has 81 divisors (see below), whose sum is σ = 18412352354991. Its totient is φ = 4734136275264.

The previous prime is 9981340774219. The next prime is 9981340774289. The reversal of 9981340774276 is 6724770431899.

The square root of 9981340774276 is 3159326.

It is a perfect power (a square), and thus also a powerful number.

9981340774276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3691678047876 + 6289662726400 = 1921374^2 + 2507920^2 .

It is a super-3 number, since 3×9981340774276³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 25141916110 + ... + 25141916506.

Almost surely, 2^{9981340774276} is an apocalyptic number.

9981340774276 is the 3159326-th square number.

It is an amenable number.

9981340774276 is a deficient number, since it is larger than the sum of its proper divisors (8431011580715).

9981340774276 is an equidigital number, since it uses as much as digits as its factorization.

9981340774276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 128024064, while the sum is 67.

The spelling of 9981340774276 in words is "nine trillion, nine hundred eighty-one billion, three hundred forty million, seven hundred seventy-four thousand, two hundred seventy-six".