6319493438 has 4 divisors (see below), whose sum is σ = 9479240160. Its totient is φ = 3159746718.

The previous prime is 6319493431. The next prime is 6319493483. The reversal of 6319493438 is 8343949136.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6319493431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1579873358 + ... + 1579873361.

It is an arithmetic number, because the mean of its divisors is an integer number (2369810040).

Almost surely, 2^6319493438 is an apocalyptic number.

6319493438 is a deficient number, since it is larger than the sum of its proper divisors (3159746722).

6319493438 is a wasteful number, since it uses less digits than its factorization.

6319493438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159746721.

The product of its digits is 1679616, while the sum is 50.

The square root of 6319493438 is about 79495.2416060232. The cubic root of 6319493438 is about 1848.8176948244.

The spelling of 6319493438 in words is "six billion, three hundred nineteen million, four hundred ninety-three thousand, four hundred thirty-eight".