5178244738 has 8 divisors (see below), whose sum is σ = 7894701180. Its totient is φ = 2546677680.

The previous prime is 5178244723. The next prime is 5178244741. The reversal of 5178244738 is 8374428715.

It can be written as a sum of positive squares in 2 ways, for example, as 3246378529 + 1931866209 = 56977^2 + 43953^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 5178244691 and 5178244700.

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, 21222193 + ... + 21222436.

Almost surely, 2^5178244738 is an apocalyptic number.

5178244738 is a deficient number, since it is larger than the sum of its proper divisors (2716456442).

5178244738 is a wasteful number, since it uses less digits than its factorization.

5178244738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42444692.

The product of its digits is 1505280, while the sum is 49.

The square root of 5178244738 is about 71960.0218037766. The cubic root of 5178244738 is about 1730.0587746635.

The spelling of 5178244738 in words is "five billion, one hundred seventy-eight million, two hundred forty-four thousand, seven hundred thirty-eight".