188283794688 has 216 divisors, whose sum is σ = 592675705440. Its totient is φ = 57011834880.

The previous prime is 188283794683. The next prime is 188283794693. The reversal of 188283794688 is 886497382881.

188283794688 is a `hidden beast` number, since 1 + 8 + 82 + 83 + 7 + 9 + 468 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (188283794683) and next prime (188283794693).

It is a super-2 number, since 2×188283794688² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188283794683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50762178 + ... + 50765886.

Almost surely, 2^188283794688 is an apocalyptic number.

188283794688 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 188283794688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296337852720).

188283794688 is an abundant number, since it is smaller than the sum of its proper divisors (404391910752).

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

188283794688 is a wasteful number, since it uses less digits than its factorization.

188283794688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5745 (or 5728 counting only the distinct ones).

The product of its digits is 297271296, while the sum is 72.

The spelling of 188283794688 in words is "one hundred eighty-eight billion, two hundred eighty-three million, seven hundred ninety-four thousand, six hundred eighty-eight".