640322460314 has 8 divisors (see below), whose sum is σ = 960665650560. Its totient is φ = 320100576796.

The previous prime is 640322460311. The next prime is 640322460319. The reversal of 640322460314 is 413064223046.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (640322460311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30313484 + ... + 30334599.

It is an arithmetic number, because the mean of its divisors is an integer number (120083206320).

Almost surely, 2^640322460314 is an apocalyptic number.

640322460314 is a deficient number, since it is larger than the sum of its proper divisors (320343190246).

640322460314 is a wasteful number, since it uses less digits than its factorization.

640322460314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60653364.

The product of its (nonzero) digits is 82944, while the sum is 35.

The spelling of 640322460314 in words is "six hundred forty billion, three hundred twenty-two million, four hundred sixty thousand, three hundred fourteen".