187375660381 has 48 divisors (see below), whose sum is σ = 236603808000. Its totient is φ = 147077465472.

The previous prime is 187375660379. The next prime is 187375660399. The reversal of 187375660381 is 183066573781.

It is not a de Polignac number, because 187375660381 - 2¹ = 187375660379 is a prime.

It is a super-2 number, since 2×187375660381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187375660331) 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, 43082595 + ... + 43086943.

It is an arithmetic number, because the mean of its divisors is an integer number (4929246000).

Almost surely, 2^187375660381 is an apocalyptic number.

It is an amenable number.

187375660381 is a deficient number, since it is larger than the sum of its proper divisors (49228147619).

187375660381 is a wasteful number, since it uses less digits than its factorization.

187375660381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4898 (or 4891 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 187375660381 in words is "one hundred eighty-seven billion, three hundred seventy-five million, six hundred sixty thousand, three hundred eighty-one".