11721392814 has 8 divisors (see below), whose sum is σ = 23442785640. Its totient is φ = 3907130936.

The previous prime is 11721392807. The next prime is 11721392863. The reversal of 11721392814 is 41829312711.

11721392814 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

11721392814 is an admirable number.

It is a Curzon number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 976782729 + ... + 976782740.

It is an arithmetic number, because the mean of its divisors is an integer number (2930348205).

Almost surely, 2^11721392814 is an apocalyptic number.

11721392814 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11721392814 is a wasteful number, since it uses less digits than its factorization.

11721392814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953565474.

The product of its digits is 24192, while the sum is 39.

The spelling of 11721392814 in words is "eleven billion, seven hundred twenty-one million, three hundred ninety-two thousand, eight hundred fourteen".