6438190683 has 16 divisors (see below), whose sum is σ = 9134899200. Its totient is φ = 4019342976.

The previous prime is 6438190667. The next prime is 6438190691. The reversal of 6438190683 is 3860918346.

It is not a de Polignac number, because 6438190683 - 2⁴ = 6438190667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6438190663) 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, 307035 + ... + 327332.

It is an arithmetic number, because the mean of its divisors is an integer number (570931200).

Almost surely, 2^6438190683 is an apocalyptic number.

6438190683 is a deficient number, since it is larger than the sum of its proper divisors (2696708517).

6438190683 is a wasteful number, since it uses less digits than its factorization.

6438190683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634586.

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 6438190683 is about 80238.3367412361. The cubic root of 6438190683 is about 1860.3212420637.

The spelling of 6438190683 in words is "six billion, four hundred thirty-eight million, one hundred ninety thousand, six hundred eighty-three".