18811764970344 has 96 divisors (see below), whose sum is σ = 53813070511200. Its totient is φ = 5920282293120.

The previous prime is 18811764970343. The next prime is 18811764970381. The reversal of 18811764970344 is 44307946711881.

18811764970344 is a `hidden beast` number, since 1 + 8 + 81 + 176 + 49 + 7 + 0 + 344 = 666.

It is not an unprimeable number, because it can be changed into a prime (18811764970343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23065542 + ... + 23867189.

It is an arithmetic number, because the mean of its divisors is an integer number (560552817825).

Almost surely, 2^{18811764970344} is an apocalyptic number.

It is an amenable number.

18811764970344 is an abundant number, since it is smaller than the sum of its proper divisors (35001305540856).

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

18811764970344 is a wasteful number, since it uses less digits than its factorization.

18811764970344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46933055 (or 46933048 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 63.

The spelling of 18811764970344 in words is "eighteen trillion, eight hundred eleven billion, seven hundred sixty-four million, nine hundred seventy thousand, three hundred forty-four".