387856652907 has 6 divisors (see below), whose sum is σ = 517143642132. Its totient is φ = 258570382812.

The previous prime is 387856652891. The next prime is 387856652929. The reversal of 387856652907 is 709256658783.

It is not a de Polignac number, because 387856652907 - 2⁴ = 387856652891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (387856652957) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 898908 + ... + 1258470.

It is an arithmetic number, because the mean of its divisors is an integer number (86190607022).

Almost surely, 2^387856652907 is an apocalyptic number.

387856652907 is a deficient number, since it is larger than the sum of its proper divisors (129286989225).

387856652907 is an frugal number, since it uses more digits than its factorization.

387856652907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719129 (or 359566 counting only the distinct ones).

The product of its (nonzero) digits is 152409600, while the sum is 66.

The spelling of 387856652907 in words is "three hundred eighty-seven billion, eight hundred fifty-six million, six hundred fifty-two thousand, nine hundred seven".