193390680106 has 32 divisors (see below), whose sum is σ = 320894537040. Its totient is φ = 86831087616.

The previous prime is 193390680101. The next prime is 193390680113. The reversal of 193390680106 is 601086093391.

193390680106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 86063023225 + 107327656881 = 293365^2 + 327609^2 .

It is a super-2 number, since 2×193390680106² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (193390680101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8289450 + ... + 8312746.

Almost surely, 2^193390680106 is an apocalyptic number.

193390680106 is a deficient number, since it is larger than the sum of its proper divisors (127503856934).

193390680106 is a wasteful number, since it uses less digits than its factorization.

193390680106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31978.

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 193390680106 in words is "one hundred ninety-three billion, three hundred ninety million, six hundred eighty thousand, one hundred six".