11681294314838 has 4 divisors (see below), whose sum is σ = 17521941472260. Its totient is φ = 5840647157418.

The previous prime is 11681294314787. The next prime is 11681294314853. The reversal of 11681294314838 is 83841349218611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2920323578708 + ... + 2920323578711.

It is an arithmetic number, because the mean of its divisors is an integer number (4380485368065).

Almost surely, 2^{11681294314838} is an apocalyptic number.

11681294314838 is a deficient number, since it is larger than the sum of its proper divisors (5840647157422).

11681294314838 is an equidigital number, since it uses as much as digits as its factorization.

11681294314838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5840647157421.

The product of its digits is 7962624, while the sum is 59.

The spelling of 11681294314838 in words is "eleven trillion, six hundred eighty-one billion, two hundred ninety-four million, three hundred fourteen thousand, eight hundred thirty-eight".