5144440860 has 144 divisors (see below), whose sum is σ = 16839609696. Its totient is φ = 1263730176.

The previous prime is 5144440859. The next prime is 5144440879. The reversal of 5144440860 is 680444415.

It is a happy number.

5144440860 is a `hidden beast` number, since 514 + 44 + 40 + 8 + 60 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1301407 + ... + 1305353.

It is an arithmetic number, because the mean of its divisors is an integer number (116941734).

Almost surely, 2^5144440860 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 5144440860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8419804848).

5144440860 is an abundant number, since it is smaller than the sum of its proper divisors (11695168836).

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

5144440860 is a wasteful number, since it uses less digits than its factorization.

5144440860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4532 (or 4527 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 5144440860 is about 71724.7576503400. The cubic root of 5144440860 is about 1726.2859119962.

The spelling of 5144440860 in words is "five billion, one hundred forty-four million, four hundred forty thousand, eight hundred sixty".