5218147538 has 16 divisors (see below), whose sum is σ = 8172809280. Its totient is φ = 2495559696.

The previous prime is 5218147513. The next prime is 5218147541. The reversal of 5218147538 is 8357418125.

It is a super-2 number, since 2×5218147538² = 54458127456670922888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414206 + ... + 426617.

It is an arithmetic number, because the mean of its divisors is an integer number (510800580).

Almost surely, 2^5218147538 is an apocalyptic number.

5218147538 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

5218147538 is a deficient number, since it is larger than the sum of its proper divisors (2954661742).

5218147538 is a wasteful number, since it uses less digits than its factorization.

5218147538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840961.

The product of its digits is 268800, while the sum is 44.

The square root of 5218147538 is about 72236.7464522040. The cubic root of 5218147538 is about 1734.4912690403.

The spelling of 5218147538 in words is "five billion, two hundred eighteen million, one hundred forty-seven thousand, five hundred thirty-eight".