187713487677 has 4 divisors (see below), whose sum is σ = 250284650240. Its totient is φ = 125142325116.

The previous prime is 187713487651. The next prime is 187713487699. The reversal of 187713487677 is 776784317781.

187713487677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 187713487677 - 2⁸ = 187713487421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187713487777) 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 3 ways as a sum of consecutive naturals, for example, 31285581277 + ... + 31285581282.

It is an arithmetic number, because the mean of its divisors is an integer number (62571162560).

Almost surely, 2^187713487677 is an apocalyptic number.

It is an amenable number.

187713487677 is a deficient number, since it is larger than the sum of its proper divisors (62571162563).

187713487677 is an equidigital number, since it uses as much as digits as its factorization.

187713487677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62571162562.

The product of its digits is 77446656, while the sum is 66.

The spelling of 187713487677 in words is "one hundred eighty-seven billion, seven hundred thirteen million, four hundred eighty-seven thousand, six hundred seventy-seven".