640632314113 has 8 divisors (see below), whose sum is σ = 715917265056. Its totient is φ = 568188304800.

The previous prime is 640632314111. The next prime is 640632314129. The reversal of 640632314113 is 311413236046.

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 640632314113 - 2¹ = 640632314111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (640632314111) 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, 710234931 + ... + 710235832.

It is an arithmetic number, because the mean of its divisors is an integer number (89489658132).

Almost surely, 2^640632314113 is an apocalyptic number.

It is an amenable number.

640632314113 is a deficient number, since it is larger than the sum of its proper divisors (75284950943).

640632314113 is a wasteful number, since it uses less digits than its factorization.

640632314113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420470815.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 640632314113 in words is "six hundred forty billion, six hundred thirty-two million, three hundred fourteen thousand, one hundred thirteen".