5181258144 has 24 divisors (see below), whose sum is σ = 13600802880. Its totient is φ = 1727086016.

The previous prime is 5181258107. The next prime is 5181258163. The reversal of 5181258144 is 4418521815.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26985624 + ... + 26985815.

It is an arithmetic number, because the mean of its divisors is an integer number (566700120).

Almost surely, 2^5181258144 is an apocalyptic number.

It is an amenable number.

5181258144 is an abundant number, since it is smaller than the sum of its proper divisors (8419544736).

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

5181258144 is a wasteful number, since it uses less digits than its factorization.

5181258144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53971452 (or 53971444 counting only the distinct ones).

The product of its digits is 51200, while the sum is 39.

The square root of 5181258144 is about 71980.9568149799. The cubic root of 5181258144 is about 1730.3943039661.

Adding to 5181258144 its reverse (4418521815), we get a palindrome (9599779959).

The spelling of 5181258144 in words is "five billion, one hundred eighty-one million, two hundred fifty-eight thousand, one hundred forty-four".