40244779852 has 24 divisors (see below), whose sum is σ = 75241624640. Its totient is φ = 18778787280.

The previous prime is 40244779811. The next prime is 40244779853. The reversal of 40244779852 is 25897744204.

It is a self number, because there is not a number n which added to its sum of digits gives 40244779852.

It is not an unprimeable number, because it can be changed into a prime (40244779853) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3946674 + ... + 3956857.

Almost surely, 2^40244779852 is an apocalyptic number.

It is an amenable number.

40244779852 is a deficient number, since it is larger than the sum of its proper divisors (34996844788).

40244779852 is a wasteful number, since it uses less digits than its factorization.

40244779852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7903621 (or 7903619 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 40244779852 in words is "forty billion, two hundred forty-four million, seven hundred seventy-nine thousand, eight hundred fifty-two".