6385043738 has 8 divisors (see below), whose sum is σ = 9907826580. Its totient is φ = 3082434880.

The previous prime is 6385043669. The next prime is 6385043761. The reversal of 6385043738 is 8373405836.

It can be written as a sum of positive squares in 2 ways, for example, as 5753677609 + 631366129 = 75853^2 + 25127^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 6385043692 and 6385043701.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55043423 + ... + 55043538.

Almost surely, 2^6385043738 is an apocalyptic number.

6385043738 is a deficient number, since it is larger than the sum of its proper divisors (3522782842).

6385043738 is a wasteful number, since it uses less digits than its factorization.

6385043738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110086992.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The square root of 6385043738 is about 79906.4686868341. The cubic root of 6385043738 is about 1855.1881383226.

The spelling of 6385043738 in words is "six billion, three hundred eighty-five million, forty-three thousand, seven hundred thirty-eight".