386853721705 has 32 divisors (see below), whose sum is σ = 533227593600. Its totient is φ = 266466931200.

The previous prime is 386853721693. The next prime is 386853721711. The reversal of 386853721705 is 507127358683.

It is a de Polignac number, because none of the positive numbers 2^k-386853721705 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3889495 + ... + 3987715.

It is an arithmetic number, because the mean of its divisors is an integer number (16663362300).

Almost surely, 2^386853721705 is an apocalyptic number.

It is an amenable number.

386853721705 is a deficient number, since it is larger than the sum of its proper divisors (146373871895).

386853721705 is a wasteful number, since it uses less digits than its factorization.

386853721705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102025.

The product of its (nonzero) digits is 8467200, while the sum is 55.

The spelling of 386853721705 in words is "three hundred eighty-six billion, eight hundred fifty-three million, seven hundred twenty-one thousand, seven hundred five".