1818233073792 has 512 divisors, whose sum is σ = 5920791552000. Its totient is φ = 546751586304.

The previous prime is 1818233073737. The next prime is 1818233073803. The reversal of 1818233073792 is 2973703328181.

1818233073792 is a `hidden beast` number, since 1 + 81 + 82 + 330 + 73 + 7 + 92 = 666.

It is a super-2 number, since 2×1818233073792² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 351890793 + ... + 351895959.

It is an arithmetic number, because the mean of its divisors is an integer number (11564046000).

Almost surely, 2^{1818233073792} is an apocalyptic number.

1818233073792 is a gapful number since it is divisible by the number (12) 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 1818233073792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2960395776000).

1818233073792 is an abundant number, since it is smaller than the sum of its proper divisors (4102558478208).

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

1818233073792 is a wasteful number, since it uses less digits than its factorization.

1818233073792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5465 (or 5447 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 1818233073792 in words is "one trillion, eight hundred eighteen billion, two hundred thirty-three million, seventy-three thousand, seven hundred ninety-two".