5161273344 has 168 divisors, whose sum is σ = 15477437430. Its totient is φ = 1719926784.

The previous prime is 5161273339. The next prime is 5161273367. The reversal of 5161273344 is 4433721615.

5161273344 is a `hidden beast` number, since 5 + 1 + 612 + 7 + 3 + 34 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5142610944 + 18662400 = 71712^2 + 4320^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5161273299 and 5161273308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1491264 + ... + 1494720.

Almost surely, 2^5161273344 is an apocalyptic number.

5161273344 is a gapful number since it is divisible by the number (54) 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 5161273344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7738718715).

5161273344 is an abundant number, since it is smaller than the sum of its proper divisors (10316164086).

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

5161273344 is an frugal number, since it uses more digits than its factorization.

5161273344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3497 (or 3462 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 5161273344 is about 71842.0026446925. The cubic root of 5161273344 is about 1728.1666505941.

Adding to 5161273344 its reverse (4433721615), we get a palindrome (9594994959).

The spelling of 5161273344 in words is "five billion, one hundred sixty-one million, two hundred seventy-three thousand, three hundred forty-four".