187700138188 has 24 divisors (see below), whose sum is σ = 331103711232. Its totient is φ = 93099266064.

The previous prime is 187700138147. The next prime is 187700138189. The reversal of 187700138188 is 881831007781.

It is not an unprimeable number, because it can be changed into a prime (187700138189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5065095 + ... + 5102017.

It is an arithmetic number, because the mean of its divisors is an integer number (13795987968).

Almost surely, 2^187700138188 is an apocalyptic number.

It is an amenable number.

187700138188 is a deficient number, since it is larger than the sum of its proper divisors (143403573044).

187700138188 is a wasteful number, since it uses less digits than its factorization.

187700138188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47061 (or 47059 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 52.

The spelling of 187700138188 in words is "one hundred eighty-seven billion, seven hundred million, one hundred thirty-eight thousand, one hundred eighty-eight".