11381709612 has 144 divisors (see below), whose sum is σ = 35021091840. Its totient is φ = 2843745408.

The previous prime is 11381709589. The next prime is 11381709623. The reversal of 11381709612 is 21690718311.

11381709612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106053 + ... + 184419.

Almost surely, 2^11381709612 is an apocalyptic number.

11381709612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11381709612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17510545920).

11381709612 is an abundant number, since it is smaller than the sum of its proper divisors (23639382228).

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

11381709612 is a wasteful number, since it uses less digits than its factorization.

11381709612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78420 (or 78411 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 39.

The spelling of 11381709612 in words is "eleven billion, three hundred eighty-one million, seven hundred nine thousand, six hundred twelve".