640452422314 has 4 divisors (see below), whose sum is σ = 960678633474. Its totient is φ = 320226211156.

The previous prime is 640452422261. The next prime is 640452422321. The reversal of 640452422314 is 413224254046.

640452422314 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 582146110225 + 58306312089 = 762985^2 + 241467^2 .

It is a super-3 number, since 3×640452422314³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160113105577 + ... + 160113105580.

Almost surely, 2^640452422314 is an apocalyptic number.

640452422314 is a deficient number, since it is larger than the sum of its proper divisors (320226211160).

640452422314 is a wasteful number, since it uses less digits than its factorization.

640452422314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320226211159.

The product of its (nonzero) digits is 184320, while the sum is 37.

The spelling of 640452422314 in words is "six hundred forty billion, four hundred fifty-two million, four hundred twenty-two thousand, three hundred fourteen".