40543100212 has 12 divisors (see below), whose sum is σ = 71132819940. Its totient is φ = 20219437376.

The previous prime is 40543100209. The next prime is 40543100281. The reversal of 40543100212 is 21200134504.

It can be written as a sum of positive squares in 2 ways, for example, as 17936173476 + 22606926736 = 133926^2 + 150356^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13026433 + ... + 13029544.

It is an arithmetic number, because the mean of its divisors is an integer number (5927734995).

Almost surely, 2^40543100212 is an apocalyptic number.

It is an amenable number.

40543100212 is a deficient number, since it is larger than the sum of its proper divisors (30589719728).

40543100212 is a wasteful number, since it uses less digits than its factorization.

40543100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26056370 (or 26056368 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 40543100212 its reverse (21200134504), we get a palindrome (61743234716).

The spelling of 40543100212 in words is "forty billion, five hundred forty-three million, one hundred thousand, two hundred twelve".