387207685685 has 8 divisors (see below), whose sum is σ = 464656715136. Its totient is φ = 309761153680.

The previous prime is 387207685681. The next prime is 387207685699. The reversal of 387207685685 is 586586702783.

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

It is not a de Polignac number, because 387207685685 - 2² = 387207685681 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 (387207685681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264401 + ... + 918870.

It is an arithmetic number, because the mean of its divisors is an integer number (58082089392).

Almost surely, 2^387207685685 is an apocalyptic number.

It is an amenable number.

387207685685 is a deficient number, since it is larger than the sum of its proper divisors (77449029451).

387207685685 is a wasteful number, since it uses less digits than its factorization.

387207685685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248723.

The product of its (nonzero) digits is 135475200, while the sum is 65.

The spelling of 387207685685 in words is "three hundred eighty-seven billion, two hundred seven million, six hundred eighty-five thousand, six hundred eighty-five".