1818034950816 has 672 divisors, whose sum is σ = 6408659755008. Its totient is φ = 496511285760.

The previous prime is 1818034950763. The next prime is 1818034950821. The reversal of 1818034950816 is 6180594308181.

It is a happy number.

1818034950816 is a `hidden beast` number, since 1 + 8 + 1 + 80 + 3 + 49 + 508 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

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 111 ways as a sum of consecutive naturals, for example, 420158445 + ... + 420162771.

It is an arithmetic number, because the mean of its divisors is an integer number (9536696064).

Almost surely, 2^{1818034950816} is an apocalyptic number.

1818034950816 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 1818034950816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3204329877504).

1818034950816 is an abundant number, since it is smaller than the sum of its proper divisors (4590624804192).

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

1818034950816 is an equidigital number, since it uses as much as digits as its factorization.

1818034950816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4476 (or 4453 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The spelling of 1818034950816 in words is "one trillion, eight hundred eighteen billion, thirty-four million, nine hundred fifty thousand, eight hundred sixteen".