1801103393418 has 64 divisors (see below), whose sum is σ = 4201805352960. Its totient is φ = 504046872000.

The previous prime is 1801103393413. The next prime is 1801103393519. The reversal of 1801103393418 is 8143933011081.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1801103393418.

It is not an unprimeable number, because it can be changed into a prime (1801103393413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 858408 + ... + 2083043.

It is an arithmetic number, because the mean of its divisors is an integer number (65653208640).

Almost surely, 2^{1801103393418} is an apocalyptic number.

1801103393418 is an abundant number, since it is smaller than the sum of its proper divisors (2400701959542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1801103393418 is a wasteful number, since it uses less digits than its factorization.

1801103393418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941763.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 1801103393418 in words is "one trillion, eight hundred one billion, one hundred three million, three hundred ninety-three thousand, four hundred eighteen".