6385680229 has 4 divisors (see below), whose sum is σ = 6388664940. Its totient is φ = 6382695520.

The previous prime is 6385680221. The next prime is 6385680241. The reversal of 6385680229 is 9220865836.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5749127329 + 636552900 = 75823^2 + 25230^2 .

It is a cyclic number.

It is not a de Polignac number, because 6385680229 - 2³ = 6385680221 is a prime.

It is a Smith number, since the sum of its digits (49) 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 (6385680221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1489144 + ... + 1493425.

It is an arithmetic number, because the mean of its divisors is an integer number (1597166235).

Almost surely, 2^6385680229 is an apocalyptic number.

It is an amenable number.

6385680229 is a deficient number, since it is larger than the sum of its proper divisors (2984711).

6385680229 is a wasteful number, since it uses less digits than its factorization.

6385680229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984710.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 6385680229 is about 79910.4513127038. The cubic root of 6385680229 is about 1855.2497808823.

The spelling of 6385680229 in words is "six billion, three hundred eighty-five million, six hundred eighty thousand, two hundred twenty-nine".