4001286218818 has 16 divisors (see below), whose sum is σ = 6863747679360. Its totient is φ = 1713736982016.

The previous prime is 4001286218807. The next prime is 4001286218819. The reversal of 4001286218818 is 8188126821004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4001286218819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91641471 + ... + 91685122.

It is an arithmetic number, because the mean of its divisors is an integer number (428984229960).

Almost surely, 2^{4001286218818} is an apocalyptic number.

4001286218818 is a deficient number, since it is larger than the sum of its proper divisors (2862461460542).

4001286218818 is a wasteful number, since it uses less digits than its factorization.

4001286218818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183328161.

The product of its (nonzero) digits is 393216, while the sum is 49.

The spelling of 4001286218818 in words is "four trillion, one billion, two hundred eighty-six million, two hundred eighteen thousand, eight hundred eighteen".