6351398208 has 42 divisors (see below), whose sum is σ = 18205137834. Its totient is φ = 2117132544.

The previous prime is 6351398173. The next prime is 6351398233. The reversal of 6351398208 is 8028931536.

It is a happy number.

6351398208 is a `hidden beast` number, since 6 + 3 + 51 + 398 + 208 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3828144384 + 2523253824 = 61872^2 + 50232^2 .

It is a super-2 number, since 2×6351398208² = 80680518393171222528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5512791 + ... + 5513942.

Almost surely, 2^6351398208 is an apocalyptic number.

It is an amenable number.

6351398208 is an abundant number, since it is smaller than the sum of its proper divisors (11853739626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6351398208 is a wasteful number, since it uses less digits than its factorization.

6351398208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11026751 (or 11026738 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 6351398208 is about 79695.6599069234. The cubic root of 6351398208 is about 1851.9238042565.

The spelling of 6351398208 in words is "six billion, three hundred fifty-one million, three hundred ninety-eight thousand, two hundred eight".