4045042075949 has 12 divisors (see below), whose sum is σ = 4748626446300. Its totient is φ = 3435369936768.

The previous prime is 4045042075939. The next prime is 4045042075999. The reversal of 4045042075949 is 9495702405404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3542368165924 + 502673910025 = 1882118^2 + 708995^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4045042075949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4045042075949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4045042075939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 378673004 + ... + 378683685.

It is an arithmetic number, because the mean of its divisors is an integer number (395718870525).

Almost surely, 2^{4045042075949} is an apocalyptic number.

4045042075949 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4045042075949 is a deficient number, since it is larger than the sum of its proper divisors (703584370351).

4045042075949 is a wasteful number, since it uses less digits than its factorization.

4045042075949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757356812 (or 757356805 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 4045042075949 in words is "four trillion, forty-five billion, forty-two million, seventy-five thousand, nine hundred forty-nine".