188312946939 has 48 divisors (see below), whose sum is σ = 297769736992. Its totient is φ = 113985460224.

The previous prime is 188312946929. The next prime is 188312946947. The reversal of 188312946939 is 939649213881.

188312946939 is a `hidden beast` number, since 18 + 8 + 3 + 129 + 469 + 39 = 666.

It is not a de Polignac number, because 188312946939 - 2⁹ = 188312946427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (188312946929) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1798989 + ... + 1900785.

Almost surely, 2^188312946939 is an apocalyptic number.

188312946939 is a deficient number, since it is larger than the sum of its proper divisors (109456790053).

188312946939 is a wasteful number, since it uses less digits than its factorization.

188312946939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102076 (or 102073 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 63.

The spelling of 188312946939 in words is "one hundred eighty-eight billion, three hundred twelve million, nine hundred forty-six thousand, nine hundred thirty-nine".