6445426598 has 8 divisors (see below), whose sum is σ = 10411843008. Its totient is φ = 2974812264.

The previous prime is 6445426577. The next prime is 6445426627. The reversal of 6445426598 is 8956245446.

It is a happy number.

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

It is a congruent number.

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, 123950486 + ... + 123950537.

It is an arithmetic number, because the mean of its divisors is an integer number (1301480376).

Almost surely, 2^6445426598 is an apocalyptic number.

6445426598 is a deficient number, since it is larger than the sum of its proper divisors (3966416410).

6445426598 is a wasteful number, since it uses less digits than its factorization.

6445426598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247901038.

The product of its digits is 8294400, while the sum is 53.

The square root of 6445426598 is about 80283.4142148925. The cubic root of 6445426598 is about 1861.0179226054.

The spelling of 6445426598 in words is "six billion, four hundred forty-five million, four hundred twenty-six thousand, five hundred ninety-eight".