6494071018 has 8 divisors (see below), whose sum is σ = 9743464548. Its totient is φ = 3246249504.

The previous prime is 6494070983. The next prime is 6494071027. The reversal of 6494071018 is 8101704946.

It can be written as a sum of positive squares in 2 ways, for example, as 6308648329 + 185422689 = 79427^2 + 13617^2 .

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

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, 382621 + ... + 399232.

Almost surely, 2^6494071018 is an apocalyptic number.

6494071018 is a deficient number, since it is larger than the sum of its proper divisors (3249393530).

6494071018 is a wasteful number, since it uses less digits than its factorization.

6494071018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786008.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 6494071018 is about 80585.7991087760. The cubic root of 6494071018 is about 1865.6879701136.

The spelling of 6494071018 in words is "six billion, four hundred ninety-four million, seventy-one thousand, eighteen".