1818103371040 has 192 divisors, whose sum is σ = 5121427627008. Its totient is φ = 602166067200.

The previous prime is 1818103370933. The next prime is 1818103371041. The reversal of 1818103371040 is 401733018181.

It is not an unprimeable number, because it can be changed into a prime (1818103371041) 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, 52569 + ... + 1907608.

It is an arithmetic number, because the mean of its divisors is an integer number (26674102224).

Almost surely, 2^{1818103371040} is an apocalyptic number.

1818103371040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1818103371040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2560713813504).

1818103371040 is an abundant number, since it is smaller than the sum of its proper divisors (3303324255968).

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

1818103371040 is a wasteful number, since it uses less digits than its factorization.

1818103371040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960251 (or 1960243 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 1818103371040 in words is "one trillion, eight hundred eighteen billion, one hundred three million, three hundred seventy-one thousand, forty".