386708686847 has 16 divisors (see below), whose sum is σ = 463554862080. Its totient is φ = 315644244768.

The previous prime is 386708686843. The next prime is 386708686849. The reversal of 386708686847 is 748686807683.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 386708686847 - 2² = 386708686843 is a prime.

It is a super-2 number, since 2×386708686847² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386708686843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15871697 + ... + 15896042.

It is an arithmetic number, because the mean of its divisors is an integer number (28972178880).

Almost surely, 2^386708686847 is an apocalyptic number.

386708686847 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

386708686847 is a deficient number, since it is larger than the sum of its proper divisors (76846175233).

386708686847 is a wasteful number, since it uses less digits than its factorization.

386708686847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31767830.

The product of its (nonzero) digits is 520224768, while the sum is 71.

The spelling of 386708686847 in words is "three hundred eighty-six billion, seven hundred eight million, six hundred eighty-six thousand, eight hundred forty-seven".