193158071930 has 16 divisors (see below), whose sum is σ = 359673651720. Its totient is φ = 74598979392.

The previous prime is 193158071921. The next prime is 193158071941. The reversal of 193158071930 is 39170851391.

It can be written as a sum of positive squares in 4 ways, for example, as 119929923481 + 73228148449 = 346309^2 + 270607^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333030869 + ... + 333031448.

Almost surely, 2^193158071930 is an apocalyptic number.

193158071930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193158071930 is a deficient number, since it is larger than the sum of its proper divisors (166515579790).

193158071930 is a wasteful number, since it uses less digits than its factorization.

193158071930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666062353.

The product of its (nonzero) digits is 204120, while the sum is 47.

The spelling of 193158071930 in words is "one hundred ninety-three billion, one hundred fifty-eight million, seventy-one thousand, nine hundred thirty".