1811418050 has 54 divisors (see below), whose sum is σ = 3656242827. Its totient is φ = 667386720.

The previous prime is 1811418031. The next prime is 1811418083. The reversal of 1811418050 is 508141181.

It can be written as a sum of positive squares in 5 ways, for example, as 113401201 + 1698016849 = 10649^2 + 41207^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=30095.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3912119 + ... + 3912581.

Almost surely, 2^1811418050 is an apocalyptic number.

1811418050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1811418050 is an abundant number, since it is smaller than the sum of its proper divisors (1844824777).

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

1811418050 is an equidigital number, since it uses as much as digits as its factorization.

1811418050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 29.

The square root of 1811418050 is about 42560.7571596183. The cubic root of 1811418050 is about 1219.0070865064.

The spelling of 1811418050 in words is "one billion, eight hundred eleven million, four hundred eighteen thousand, fifty".