387207685683 has 48 divisors (see below), whose sum is σ = 702417643200. Its totient is φ = 204241395456.

The previous prime is 387207685681. The next prime is 387207685699. The reversal of 387207685683 is 386586702783.

It is a happy number.

387207685683 is a `hidden beast` number, since 3 + 8 + 7 + 2 + 0 + 7 + 68 + 568 + 3 = 666.

It is not a de Polignac number, because 387207685683 - 2¹ = 387207685681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 387207685683.

It is not an unprimeable number, because it can be changed into a prime (387207685681) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4784166 + ... + 4864427.

It is an arithmetic number, because the mean of its divisors is an integer number (14633700900).

Almost surely, 2^387207685683 is an apocalyptic number.

387207685683 is a deficient number, since it is larger than the sum of its proper divisors (315209957517).

387207685683 is a wasteful number, since it uses less digits than its factorization.

387207685683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9648633 (or 9648616 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 63.

The spelling of 387207685683 in words is "three hundred eighty-seven billion, two hundred seven million, six hundred eighty-five thousand, six hundred eighty-three".