6400606370 has 8 divisors (see below), whose sum is σ = 11521091484. Its totient is φ = 2560242544.

The previous prime is 6400606367. The next prime is 6400606397. The reversal of 6400606370 is 736060046.

It can be written as a sum of positive squares in 2 ways, for example, as 5259585529 + 1141020841 = 72523^2 + 33779^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320030309 + ... + 320030328.

Almost surely, 2^6400606370 is an apocalyptic number.

6400606370 is a deficient number, since it is larger than the sum of its proper divisors (5120485114).

6400606370 is a wasteful number, since it uses less digits than its factorization.

6400606370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640060644.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 6400606370 is about 80003.7897227375. The cubic root of 6400606370 is about 1856.6941674313.

The spelling of 6400606370 in words is "six billion, four hundred million, six hundred six thousand, three hundred seventy".