40512322312 has 48 divisors (see below), whose sum is σ = 96395285520. Its totient is φ = 15784020000.

The previous prime is 40512322307. The next prime is 40512322349. The reversal of 40512322312 is 21322321504.

It is a super-2 number, since 2×40512322312² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4693314 + ... + 4701937.

It is an arithmetic number, because the mean of its divisors is an integer number (2008235115).

Almost surely, 2^40512322312 is an apocalyptic number.

It is an amenable number.

40512322312 is an abundant number, since it is smaller than the sum of its proper divisors (55882963208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40512322312 is a wasteful number, since it uses less digits than its factorization.

40512322312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9395282 (or 9395271 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 40512322312 its reverse (21322321504), we get a palindrome (61834643816).

The spelling of 40512322312 in words is "forty billion, five hundred twelve million, three hundred twenty-two thousand, three hundred twelve".