10317216638 has 16 divisors (see below), whose sum is σ = 16398234240. Its totient is φ = 4854735000.

The previous prime is 10317216629. The next prime is 10317216643. The reversal of 10317216638 is 83661271301.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 893288 + ... + 904763.

It is an arithmetic number, because the mean of its divisors is an integer number (1024889640).

Almost surely, 2^10317216638 is an apocalyptic number.

10317216638 is a deficient number, since it is larger than the sum of its proper divisors (6081017602).

10317216638 is a wasteful number, since it uses less digits than its factorization.

10317216638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798223.

The product of its (nonzero) digits is 36288, while the sum is 38.

Adding to 10317216638 its reverse (83661271301), we get a palindrome (93978487939).

The spelling of 10317216638 in words is "ten billion, three hundred seventeen million, two hundred sixteen thousand, six hundred thirty-eight".