6468492938 has 4 divisors (see below), whose sum is σ = 9702739410. Its totient is φ = 3234246468.

The previous prime is 6468492937. The next prime is 6468492959. The reversal of 6468492938 is 8392948646.

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

It can be written as a sum of positive squares in only one way, i.e., 5220496009 + 1247996929 = 72253^2 + 35327^2 .

It is not an unprimeable number, because it can be changed into a prime (6468492931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1617123233 + ... + 1617123236.

Almost surely, 2^6468492938 is an apocalyptic number.

6468492938 is a deficient number, since it is larger than the sum of its proper divisors (3234246472).

6468492938 is a wasteful number, since it uses less digits than its factorization.

6468492938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234246471.

The product of its digits is 17915904, while the sum is 59.

The square root of 6468492938 is about 80426.9416178435. The cubic root of 6468492938 is about 1863.2352967075.

The spelling of 6468492938 in words is "six billion, four hundred sixty-eight million, four hundred ninety-two thousand, nine hundred thirty-eight".