188741371956 has 12 divisors (see below), whose sum is σ = 440396534592. Its totient is φ = 62913790648.

The previous prime is 188741371927. The next prime is 188741371967. The reversal of 188741371956 is 659173147881.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 188741371956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7864223820 + ... + 7864223843.

It is an arithmetic number, because the mean of its divisors is an integer number (36699711216).

Almost surely, 2^188741371956 is an apocalyptic number.

It is an amenable number.

188741371956 is an abundant number, since it is smaller than the sum of its proper divisors (251655162636).

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

188741371956 is a wasteful number, since it uses less digits than its factorization.

188741371956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15728447670 (or 15728447668 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 60.

The spelling of 188741371956 in words is "one hundred eighty-eight billion, seven hundred forty-one million, three hundred seventy-one thousand, nine hundred fifty-six".