188351381241 has 32 divisors (see below), whose sum is σ = 280668967040. Its totient is φ = 124835904000.

The previous prime is 188351381233. The next prime is 188351381243. The reversal of 188351381241 is 142183153881.

188351381241 is a `hidden beast` number, since 1 + 8 + 8 + 3 + 513 + 8 + 124 + 1 = 666.

It is not a de Polignac number, because 188351381241 - 2³ = 188351381233 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (188351381243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3886626 + ... + 3934788.

It is an arithmetic number, because the mean of its divisors is an integer number (8770905220).

Almost surely, 2^188351381241 is an apocalyptic number.

It is an amenable number.

188351381241 is a deficient number, since it is larger than the sum of its proper divisors (92317585799).

188351381241 is a wasteful number, since it uses less digits than its factorization.

188351381241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49014 (or 49008 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The spelling of 188351381241 in words is "one hundred eighty-eight billion, three hundred fifty-one million, three hundred eighty-one thousand, two hundred forty-one".