640210417339 has 2 divisors, whose sum is σ = 640210417340. Its totient is φ = 640210417338.

The previous prime is 640210417313. The next prime is 640210417373. The reversal of 640210417339 is 933714012046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 640210417339 - 2²⁹ = 639673546427 is a prime.

It is not a weakly prime, because it can be changed into another prime (640210417039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320105208669 + 320105208670.

It is an arithmetic number, because the mean of its divisors is an integer number (320105208670).

Almost surely, 2^640210417339 is an apocalyptic number.

640210417339 is a deficient number, since it is larger than the sum of its proper divisors (1).

640210417339 is an equidigital number, since it uses as much as digits as its factorization.

640210417339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 640210417339 in words is "six hundred forty billion, two hundred ten million, four hundred seventeen thousand, three hundred thirty-nine".