193445139038 has 16 divisors (see below), whose sum is σ = 293004082176. Its totient is φ = 95777235000.

The previous prime is 193445139031. The next prime is 193445139049. The reversal of 193445139038 is 830931544391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193445139031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5714663 + ... + 5748413.

It is an arithmetic number, because the mean of its divisors is an integer number (18312755136).

Almost surely, 2^193445139038 is an apocalyptic number.

193445139038 is a deficient number, since it is larger than the sum of its proper divisors (99558943138).

193445139038 is a wasteful number, since it uses less digits than its factorization.

193445139038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61679.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 193445139038 in words is "one hundred ninety-three billion, four hundred forty-five million, one hundred thirty-nine thousand, thirty-eight".