4001803245945 has 96 divisors (see below), whose sum is σ = 7393033589760. Its totient is φ = 2075134775040.

The previous prime is 4001803245899. The next prime is 4001803245967. The reversal of 4001803245945 is 5495423081004.

4001803245945 is a `hidden beast` number, since 40 + 0 + 18 + 0 + 3 + 2 + 4 + 594 + 5 = 666.

It is not a de Polignac number, because 4001803245945 - 2¹³ = 4001803237753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 4001803245945.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 64659315 + ... + 64721175.

It is an arithmetic number, because the mean of its divisors is an integer number (77010766560).

Almost surely, 2^{4001803245945} is an apocalyptic number.

4001803245945 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4001803245945 is a deficient number, since it is larger than the sum of its proper divisors (3391230343815).

4001803245945 is a wasteful number, since it uses less digits than its factorization.

4001803245945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63357 (or 63345 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 4001803245945 in words is "four trillion, one billion, eight hundred three million, two hundred forty-five thousand, nine hundred forty-five".