6345668474 has 4 divisors (see below), whose sum is σ = 9518502714. Its totient is φ = 3172834236.

The previous prime is 6345668447. The next prime is 6345668479. The reversal of 6345668474 is 4748665436.

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., 4474673449 + 1870995025 = 66893^2 + 43255^2 .

It is not an unprimeable number, because it can be changed into a prime (6345668479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1586417117 + ... + 1586417120.

Almost surely, 2^6345668474 is an apocalyptic number.

6345668474 is a deficient number, since it is larger than the sum of its proper divisors (3172834240).

6345668474 is a wasteful number, since it uses less digits than its factorization.

6345668474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172834239.

The product of its digits is 11612160, while the sum is 53.

The square root of 6345668474 is about 79659.7042048237. The cubic root of 6345668474 is about 1851.3667498435.

The spelling of 6345668474 in words is "six billion, three hundred forty-five million, six hundred sixty-eight thousand, four hundred seventy-four".