188148747332818 has 16 divisors (see below), whose sum is σ = 282329653690656. Its totient is φ = 94038868441440.

The previous prime is 188148747332813. The next prime is 188148747332851. The reversal of 188148747332818 is 818233747841881.

It is a super-2 number, since 2×188148747332818² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (188148747332813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65224405 + ... + 68047927.

It is an arithmetic number, because the mean of its divisors is an integer number (17645603355666).

Almost surely, 2^{188148747332818} is an apocalyptic number.

188148747332818 is a deficient number, since it is larger than the sum of its proper divisors (94180906357838).

188148747332818 is a wasteful number, since it uses less digits than its factorization.

188148747332818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836089.

The product of its digits is 462422016, while the sum is 73.

The spelling of 188148747332818 in words is "one hundred eighty-eight trillion, one hundred forty-eight billion, seven hundred forty-seven million, three hundred thirty-two thousand, eight hundred eighteen".