193885386834 has 32 divisors (see below), whose sum is σ = 397465750080. Its totient is φ = 63052023840.

The previous prime is 193885386833. The next prime is 193885386839. The reversal of 193885386834 is 438683588391.

It is not an unprimeable number, because it can be changed into a prime (193885386833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179097 + ... + 647955.

It is an arithmetic number, because the mean of its divisors is an integer number (12420804690).

Almost surely, 2^193885386834 is an apocalyptic number.

193885386834 is an abundant number, since it is smaller than the sum of its proper divisors (203580363246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

193885386834 is an frugal number, since it uses more digits than its factorization.

193885386834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468987 (or 468905 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 66.

The spelling of 193885386834 in words is "one hundred ninety-three billion, eight hundred eighty-five million, three hundred eighty-six thousand, eight hundred thirty-four".