187727523812 has 6 divisors (see below), whose sum is σ = 328523166678. Its totient is φ = 93863761904.

The previous prime is 187727523779. The next prime is 187727523859. The reversal of 187727523812 is 218325727781.

It can be written as a sum of positive squares in only one way, i.e., 177726323776 + 10001200036 = 421576^2 + 100006^2 .

It is a super-2 number, since 2×187727523812² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23465940473 + ... + 23465940480.

It is an arithmetic number, because the mean of its divisors is an integer number (54753861113).

Almost surely, 2^187727523812 is an apocalyptic number.

It is an amenable number.

187727523812 is a deficient number, since it is larger than the sum of its proper divisors (140795642866).

187727523812 is a wasteful number, since it uses less digits than its factorization.

187727523812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46931880957 (or 46931880955 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 53.

The spelling of 187727523812 in words is "one hundred eighty-seven billion, seven hundred twenty-seven million, five hundred twenty-three thousand, eight hundred twelve".