3818201407243 has 16 divisors (see below), whose sum is σ = 4052311234560. Its totient is φ = 3585152195200.

The previous prime is 3818201407193. The next prime is 3818201407253. The reversal of 3818201407243 is 3427041028183.

It is not a de Polignac number, because 3818201407243 - 2²¹ = 3818199310091 is a prime.

It is a super-2 number, since 2×3818201407243² (a number of 26 digits) contains 22 as substring.

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 3818201407243.

It is not an unprimeable number, because it can be changed into a prime (3818201407253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31787328 + ... + 31907218.

It is an arithmetic number, because the mean of its divisors is an integer number (253269452160).

Almost surely, 2^{3818201407243} is an apocalyptic number.

3818201407243 is a deficient number, since it is larger than the sum of its proper divisors (234109827317).

3818201407243 is a wasteful number, since it uses less digits than its factorization.

3818201407243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124298.

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 3818201407243 in words is "three trillion, eight hundred eighteen billion, two hundred one million, four hundred seven thousand, two hundred forty-three".