6418649375 has 20 divisors (see below), whose sum is σ = 8117445336. Its totient is φ = 5073012000.

The previous prime is 6418649359. The next prime is 6418649381. The reversal of 6418649375 is 5739468146.

It is not a de Polignac number, because 6418649375 - 2⁴ = 6418649359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9992 + ... + 113741.

Almost surely, 2^6418649375 is an apocalyptic number.

6418649375 is a deficient number, since it is larger than the sum of its proper divisors (1698795961).

6418649375 is an equidigital number, since it uses as much as digits as its factorization.

6418649375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123836 (or 123821 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 53.

The square root of 6418649375 is about 80116.4738053292. The cubic root of 6418649375 is about 1858.4371748275.

The spelling of 6418649375 in words is "six billion, four hundred eighteen million, six hundred forty-nine thousand, three hundred seventy-five".