193394706688 has 36 divisors (see below), whose sum is σ = 386078644588. Its totient is φ = 96686161920.

The previous prime is 193394706683. The next prime is 193394706691. The reversal of 193394706688 is 886607493391.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39128004864 + 154266701824 = 197808^2 + 392768^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is not an unprimeable number, because it can be changed into a prime (193394706683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2449720 + ... + 2527432.

Almost surely, 2^193394706688 is an apocalyptic number.

It is an amenable number.

193394706688 is a deficient number, since it is larger than the sum of its proper divisors (192683937900).

193394706688 is an frugal number, since it uses more digits than its factorization.

193394706688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87450 (or 87436 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 64.

The spelling of 193394706688 in words is "one hundred ninety-three billion, three hundred ninety-four million, seven hundred six thousand, six hundred eighty-eight".