40091371212 has 24 divisors (see below), whose sum is σ = 93759635200. Its totient is φ = 13333347216.

The previous prime is 40091371207. The next prime is 40091371259. The reversal of 40091371212 is 21217319004.

It is a self number, because there is not a number n which added to its sum of digits gives 40091371212.

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 7 ways as a sum of consecutive naturals, for example, 3799912 + ... + 3810447.

Almost surely, 2^40091371212 is an apocalyptic number.

It is an amenable number.

40091371212 is an abundant number, since it is smaller than the sum of its proper divisors (53668263988).

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

40091371212 is a wasteful number, since it uses less digits than its factorization.

40091371212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7610805 (or 7610803 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The spelling of 40091371212 in words is "forty billion, ninety-one million, three hundred seventy-one thousand, two hundred twelve".