187343525138 has 32 divisors (see below), whose sum is σ = 358504565760. Its totient is φ = 71293516560.

The previous prime is 187343525099. The next prime is 187343525141. The reversal of 187343525138 is 831525343781.

187343525138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×187343525138² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 14138918 + ... + 14152161.

It is an arithmetic number, because the mean of its divisors is an integer number (11203267680).

Almost surely, 2^187343525138 is an apocalyptic number.

187343525138 is a deficient number, since it is larger than the sum of its proper divisors (171161040622).

187343525138 is a wasteful number, since it uses less digits than its factorization.

187343525138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28291142.

The product of its digits is 2419200, while the sum is 50.

The spelling of 187343525138 in words is "one hundred eighty-seven billion, three hundred forty-three million, five hundred twenty-five thousand, one hundred thirty-eight".