1818069097536 has 168 divisors, whose sum is σ = 5222213380800. Its totient is φ = 604740142080.

The previous prime is 1818069097531. The next prime is 1818069097547. The reversal of 1818069097536 is 6357909608181.

1818069097536 is a `hidden beast` number, since 1 + 8 + 1 + 8 + 0 + 6 + 9 + 0 + 97 + 536 = 666.

It is not an unprimeable number, because it can be changed into a prime (1818069097531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 891646405 + ... + 891648443.

Almost surely, 2^{1818069097536} is an apocalyptic number.

1818069097536 is a gapful number since it is divisible by the number (16) 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 1818069097536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2611106690400).

1818069097536 is an abundant number, since it is smaller than the sum of its proper divisors (3404144283264).

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

1818069097536 is a wasteful number, since it uses less digits than its factorization.

1818069097536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577 (or 4564 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 1818069097536 in words is "one trillion, eight hundred eighteen billion, sixty-nine million, ninety-seven thousand, five hundred thirty-six".