386542640555 has 8 divisors (see below), whose sum is σ = 465314423472. Its totient is φ = 308258609248.

The previous prime is 386542640551. The next prime is 386542640563. The reversal of 386542640555 is 555046245683.

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

It is a cyclic number.

It is not a de Polignac number, because 386542640555 - 2² = 386542640551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 386542640497 and 386542640506.

It is not an unprimeable number, because it can be changed into a prime (386542640551) 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, 121936157 + ... + 121939326.

It is an arithmetic number, because the mean of its divisors is an integer number (58164302934).

Almost surely, 2^386542640555 is an apocalyptic number.

386542640555 is a deficient number, since it is larger than the sum of its proper divisors (78771782917).

386542640555 is a wasteful number, since it uses less digits than its factorization.

386542640555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243875805.

The product of its (nonzero) digits is 17280000, while the sum is 53.

The spelling of 386542640555 in words is "three hundred eighty-six billion, five hundred forty-two million, six hundred forty thousand, five hundred fifty-five".