1841216550 has 48 divisors (see below), whose sum is σ = 4570488720. Its totient is φ = 490531840.

The previous prime is 1841216549. The next prime is 1841216551. The reversal of 1841216550 is 556121481.

It is an interprime number because it is at equal distance from previous prime (1841216549) and next prime (1841216551).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1841216551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173806 + ... + 184094.

It is an arithmetic number, because the mean of its divisors is an integer number (95218515).

Almost surely, 2^1841216550 is an apocalyptic number.

1841216550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1841216550 is an abundant number, since it is smaller than the sum of its proper divisors (2729272170).

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

1841216550 is a wasteful number, since it uses less digits than its factorization.

1841216550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11497 (or 11492 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 1841216550 is about 42909.3993199625. The cubic root of 1841216550 is about 1225.6551375570.

The spelling of 1841216550 in words is "one billion, eight hundred forty-one million, two hundred sixteen thousand, five hundred fifty".