187939389486 has 8 divisors (see below), whose sum is σ = 375878778984. Its totient is φ = 62646463160.

The previous prime is 187939389461. The next prime is 187939389493. The reversal of 187939389486 is 684983939781.

187939389486 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

187939389486 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15661615785 + ... + 15661615796.

It is an arithmetic number, because the mean of its divisors is an integer number (46984847373).

Almost surely, 2^187939389486 is an apocalyptic number.

187939389486 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

187939389486 is a wasteful number, since it uses less digits than its factorization.

187939389486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31323231586.

The product of its digits is 564350976, while the sum is 75.

The spelling of 187939389486 in words is "one hundred eighty-seven billion, nine hundred thirty-nine million, three hundred eighty-nine thousand, four hundred eighty-six".