193842248638 has 16 divisors (see below), whose sum is σ = 308705995584. Its totient is φ = 90971320320.

The previous prime is 193842248629. The next prime is 193842248669. The reversal of 193842248638 is 836842248391.

It is a happy number.

It is a congruent number.

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, 7754883 + ... + 7779838.

It is an arithmetic number, because the mean of its divisors is an integer number (19294124724).

Almost surely, 2^193842248638 is an apocalyptic number.

193842248638 is a deficient number, since it is larger than the sum of its proper divisors (114863746946).

193842248638 is a wasteful number, since it uses less digits than its factorization.

193842248638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15535107.

The product of its digits is 15925248, while the sum is 58.

The spelling of 193842248638 in words is "one hundred ninety-three billion, eight hundred forty-two million, two hundred forty-eight thousand, six hundred thirty-eight".