5218747436 has 48 divisors (see below), whose sum is σ = 10731657216. Its totient is φ = 2173708224.

The previous prime is 5218747427. The next prime is 5218747441. The reversal of 5218747436 is 6347478125.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1140425 + ... + 1144991.

It is an arithmetic number, because the mean of its divisors is an integer number (223576192).

Almost surely, 2^5218747436 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 5218747436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5365828608).

5218747436 is an abundant number, since it is smaller than the sum of its proper divisors (5512909780).

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

5218747436 is a wasteful number, since it uses less digits than its factorization.

5218747436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718 (or 5716 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 47.

The square root of 5218747436 is about 72240.8986378215. The cubic root of 5218747436 is about 1734.5577343880.

The spelling of 5218747436 in words is "five billion, two hundred eighteen million, seven hundred forty-seven thousand, four hundred thirty-six".