193116794868 has 96 divisors (see below), whose sum is σ = 520894545920. Its totient is φ = 61805086560.

The previous prime is 193116794839. The next prime is 193116794873. The reversal of 193116794868 is 868497611391.

193116794868 is a `hidden beast` number, since 1 + 93 + 1 + 1 + 67 + 9 + 486 + 8 = 666.

It is a super-2 number, since 2×193116794868² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198105 + ... + 652287.

Almost surely, 2^193116794868 is an apocalyptic number.

193116794868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 193116794868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260447272960).

193116794868 is an abundant number, since it is smaller than the sum of its proper divisors (327777751052).

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

193116794868 is a wasteful number, since it uses less digits than its factorization.

193116794868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454354 (or 454346 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 63.

The spelling of 193116794868 in words is "one hundred ninety-three billion, one hundred sixteen million, seven hundred ninety-four thousand, eight hundred sixty-eight".