31377222068205 has 16 divisors (see below), whose sum is σ = 54065367256320. Its totient is φ = 15447247787328.

The previous prime is 31377222068177. The next prime is 31377222068209. The reversal of 31377222068205 is 50286022277313.

It is not a de Polignac number, because 31377222068205 - 2¹² = 31377222064109 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31377222068209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80454415365 + ... + 80454415754.

It is an arithmetic number, because the mean of its divisors is an integer number (3379085453520).

Almost surely, 2^{31377222068205} is an apocalyptic number.

It is an amenable number.

31377222068205 is a deficient number, since it is larger than the sum of its proper divisors (22688145188115).

31377222068205 is a wasteful number, since it uses less digits than its factorization.

31377222068205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160908831140.

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 31377222068205 in words is "thirty-one trillion, three hundred seventy-seven billion, two hundred twenty-two million, sixty-eight thousand, two hundred five".