640341039701 has 8 divisors (see below), whose sum is σ = 721087857408. Its totient is φ = 563349888000.

The previous prime is 640341039691. The next prime is 640341039707. The reversal of 640341039701 is 107930143046.

640341039701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 640341039701 - 2¹⁰ = 640341038677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640341039707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938916140 + ... + 938916821.

It is an arithmetic number, because the mean of its divisors is an integer number (90135982176).

Almost surely, 2^640341039701 is an apocalyptic number.

It is an amenable number.

640341039701 is a deficient number, since it is larger than the sum of its proper divisors (80746817707).

640341039701 is a wasteful number, since it uses less digits than its factorization.

640341039701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877833003.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 640341039701 in words is "six hundred forty billion, three hundred forty-one million, thirty-nine thousand, seven hundred one".