187738440085636 has 24 divisors (see below), whose sum is σ = 358411939712064. Its totient is φ = 85335133046880.

The previous prime is 187738440085631. The next prime is 187738440085639. The reversal of 187738440085636 is 636580044837781.

It is not an unprimeable number, because it can be changed into a prime (187738440085631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5710935 + ... + 20201278.

It is an arithmetic number, because the mean of its divisors is an integer number (14933830821336).

Almost surely, 2^{187738440085636} is an apocalyptic number.

It is an amenable number.

187738440085636 is a deficient number, since it is larger than the sum of its proper divisors (170673499626428).

187738440085636 is a wasteful number, since it uses less digits than its factorization.

187738440085636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26076891 (or 26076889 counting only the distinct ones).

The product of its (nonzero) digits is 650280960, while the sum is 70.

The spelling of 187738440085636 in words is "one hundred eighty-seven trillion, seven hundred thirty-eight billion, four hundred forty million, eighty-five thousand, six hundred thirty-six".