11731581276712 has 16 divisors (see below), whose sum is σ = 23996416248000. Its totient is φ = 5332536943920.

The previous prime is 11731581276631. The next prime is 11731581276719. The reversal of 11731581276712 is 21767218513711.

It is a self number, because there is not a number n which added to its sum of digits gives 11731581276712.

It is not an unprimeable number, because it can be changed into a prime (11731581276719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66656711712 + ... + 66656711887.

It is an arithmetic number, because the mean of its divisors is an integer number (1499776015500).

Almost surely, 2^{11731581276712} is an apocalyptic number.

It is an amenable number.

11731581276712 is an abundant number, since it is smaller than the sum of its proper divisors (12264834971288).

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

11731581276712 is a wasteful number, since it uses less digits than its factorization.

11731581276712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133313423616 (or 133313423612 counting only the distinct ones).

The product of its digits is 987840, while the sum is 52.

The spelling of 11731581276712 in words is "eleven trillion, seven hundred thirty-one billion, five hundred eighty-one million, two hundred seventy-six thousand, seven hundred twelve".