188494671881084 has 24 divisors (see below), whose sum is σ = 331989452013408. Its totient is φ = 93640624908480.

The previous prime is 188494671881081. The next prime is 188494671881099. The reversal of 188494671881084 is 480188176494881.

It is a junction number, because it is equal to n+sod(n) for n = 188494671880996 and 188494671881014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188494671881081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1082384 + ... + 19446359.

It is an arithmetic number, because the mean of its divisors is an integer number (13832893833892).

Almost surely, 2^{188494671881084} is an apocalyptic number.

It is an amenable number.

188494671881084 is a deficient number, since it is larger than the sum of its proper divisors (143494780132324).

188494671881084 is a wasteful number, since it uses less digits than its factorization.

188494671881084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20543525 (or 20543523 counting only the distinct ones).

The product of its (nonzero) digits is 792723456, while the sum is 77.

The spelling of 188494671881084 in words is "one hundred eighty-eight trillion, four hundred ninety-four billion, six hundred seventy-one million, eight hundred eighty-one thousand, eighty-four".