5105489850 has 72 divisors (see below), whose sum is σ = 13742050140. Its totient is φ = 1358952960.

The previous prime is 5105489849. The next prime is 5105489869. The reversal of 5105489850 is 589845015.

It is a happy number.

5105489850 is a `hidden beast` number, since 5 + 10 + 548 + 98 + 5 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 1215847161 + 3889642689 = 34869^2 + 62367^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 5105489796 and 5105489805.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 240466 + ... + 260834.

Almost surely, 2^5105489850 is an apocalyptic number.

5105489850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5105489850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6871025070).

5105489850 is an abundant number, since it is smaller than the sum of its proper divisors (8636560290).

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

5105489850 is a wasteful number, since it uses less digits than its factorization.

5105489850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20944 (or 20936 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 45.

The square root of 5105489850 is about 71452.7105853935. The cubic root of 5105489850 is about 1721.9180255344.

The spelling of 5105489850 in words is "five billion, one hundred five million, four hundred eighty-nine thousand, eight hundred fifty".