387748207686 has 16 divisors (see below), whose sum is σ = 886281617664. Its totient is φ = 110785202184.

The previous prime is 387748207591. The next prime is 387748207709. The reversal of 387748207686 is 686702847783.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4616050050 + ... + 4616050133.

It is an arithmetic number, because the mean of its divisors is an integer number (55392601104).

Almost surely, 2^387748207686 is an apocalyptic number.

387748207686 is an abundant number, since it is smaller than the sum of its proper divisors (498533409978).

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

387748207686 is a wasteful number, since it uses less digits than its factorization.

387748207686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9232100195.

The product of its (nonzero) digits is 151732224, while the sum is 66.

The spelling of 387748207686 in words is "three hundred eighty-seven billion, seven hundred forty-eight million, two hundred seven thousand, six hundred eighty-six".