1385656863 has 8 divisors (see below), whose sum is σ = 1869802368. Its totient is φ = 912641304.

The previous prime is 1385656847. The next prime is 1385656889. The reversal of 1385656863 is 3686565831.

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

It is not a de Polignac number, because 1385656863 - 2⁴ = 1385656847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385656843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2782195 + ... + 2782692.

It is an arithmetic number, because the mean of its divisors is an integer number (233725296).

Almost surely, 2^1385656863 is an apocalyptic number.

1385656863 is a deficient number, since it is larger than the sum of its proper divisors (484145505).

1385656863 is an equidigital number, since it uses as much as digits as its factorization.

1385656863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5564973.

The product of its digits is 3110400, while the sum is 51.

The square root of 1385656863 is about 37224.4121914638. The cubic root of 1385656863 is about 1114.8554614333.

The spelling of 1385656863 in words is "one billion, three hundred eighty-five million, six hundred fifty-six thousand, eight hundred sixty-three".