5131208544 has 384 divisors, whose sum is σ = 17551199232. Its totient is φ = 1274019840.

The previous prime is 5131208543. The next prime is 5131208569. The reversal of 5131208544 is 4458021315.

It is a super-2 number, since 2×5131208544² = 52658602244037199872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131208543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19965664 + ... + 19965920.

It is an arithmetic number, because the mean of its divisors is an integer number (45706248).

Almost surely, 2^5131208544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5131208544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8775599616).

5131208544 is an abundant number, since it is smaller than the sum of its proper divisors (12419990688).

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

5131208544 is a wasteful number, since it uses less digits than its factorization.

5131208544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 5131208544 is about 71632.4545440124. The cubic root of 5131208544 is about 1724.8045476512.

Adding to 5131208544 its reverse (4458021315), we get a palindrome (9589229859).

The spelling of 5131208544 in words is "five billion, one hundred thirty-one million, two hundred eight thousand, five hundred forty-four".