5143949278 has 32 divisors (see below), whose sum is σ = 8445951360. Its totient is φ = 2335357440.

The previous prime is 5143949221. The next prime is 5143949281. The reversal of 5143949278 is 8729493415.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 564438 + ... + 573478.

It is an arithmetic number, because the mean of its divisors is an integer number (263935980).

Almost surely, 2^5143949278 is an apocalyptic number.

5143949278 is a deficient number, since it is larger than the sum of its proper divisors (3302002082).

5143949278 is a wasteful number, since it uses less digits than its factorization.

5143949278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9412.

The product of its digits is 2177280, while the sum is 52.

The square root of 5143949278 is about 71721.3307043309. The cubic root of 5143949278 is about 1726.2309246071.

The spelling of 5143949278 in words is "five billion, one hundred forty-three million, nine hundred forty-nine thousand, two hundred seventy-eight".