4000855745 has 16 divisors (see below), whose sum is σ = 5056559040. Its totient is φ = 3030519744.

The previous prime is 4000855721. The next prime is 4000855787. The reversal of 4000855745 is 5475580004.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4000855745 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4000855699 and 4000855708.

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 15 ways as a sum of consecutive naturals, for example, 172742 + ... + 194528.

It is an arithmetic number, because the mean of its divisors is an integer number (316034940).

Almost surely, 2^4000855745 is an apocalyptic number.

It is an amenable number.

4000855745 is a deficient number, since it is larger than the sum of its proper divisors (1055703295).

4000855745 is a wasteful number, since it uses less digits than its factorization.

4000855745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23744.

The product of its (nonzero) digits is 112000, while the sum is 38.

The square root of 4000855745 is about 63252.3180998135. The cubic root of 4000855745 is about 1587.5142447727.

The spelling of 4000855745 in words is "four billion, eight hundred fifty-five thousand, seven hundred forty-five".