187138677012 has 96 divisors (see below), whose sum is σ = 516363724800. Its totient is φ = 51612554112.

The previous prime is 187138676987. The next prime is 187138677017. The reversal of 187138677012 is 210776831781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187138677017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18408643 + ... + 18418805.

It is an arithmetic number, because the mean of its divisors is an integer number (5378788800).

Almost surely, 2^187138677012 is an apocalyptic number.

187138677012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

187138677012 is an abundant number, since it is smaller than the sum of its proper divisors (329225047788).

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

187138677012 is a wasteful number, since it uses less digits than its factorization.

187138677012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17765 (or 17763 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 51.

The spelling of 187138677012 in words is "one hundred eighty-seven billion, one hundred thirty-eight million, six hundred seventy-seven thousand, twelve".