1018900050 has 96 divisors (see below), whose sum is σ = 2955144192. Its totient is φ = 227465280.

The previous prime is 1018900031. The next prime is 1018900067. The reversal of 1018900050 is 500098101.

1018900050 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1018900050³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33867 + ... + 56433.

It is an arithmetic number, because the mean of its divisors is an integer number (30782752).

Almost surely, 2^1018900050 is an apocalyptic number.

1018900050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1018900050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477572096).

1018900050 is an abundant number, since it is smaller than the sum of its proper divisors (1936244142).

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

1018900050 is a wasteful number, since it uses less digits than its factorization.

1018900050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22632 (or 22627 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 1018900050 is about 31920.2138150734. The cubic root of 1018900050 is about 1006.2607380257.

Adding to 1018900050 its reverse (500098101), we get a palindrome (1518998151).

The spelling of 1018900050 in words is "one billion, eighteen million, nine hundred thousand, fifty".