40817522212 has 24 divisors (see below), whose sum is σ = 73410887480. Its totient is φ = 19843729920.

The previous prime is 40817522203. The next prime is 40817522219. The reversal of 40817522212 is 21222571804.

It can be written as a sum of positive squares in 4 ways, for example, as 12736476736 + 28081045476 = 112856^2 + 167574^2 .

It is a super-2 number, since 2×40817522212² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40817522219) 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, 127762 + ... + 312982.

Almost surely, 2^40817522212 is an apocalyptic number.

It is an amenable number.

40817522212 is a deficient number, since it is larger than the sum of its proper divisors (32593365268).

40817522212 is a wasteful number, since it uses less digits than its factorization.

40817522212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186751 (or 186749 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The spelling of 40817522212 in words is "forty billion, eight hundred seventeen million, five hundred twenty-two thousand, two hundred twelve".