5439817478 has 16 divisors (see below), whose sum is σ = 8397383184. Its totient is φ = 2640990240.

The previous prime is 5439817463. The next prime is 5439817501. The reversal of 5439817478 is 8747189345.

It is a super-2 number, since 2×5439817478² = 59183228387908560968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38525 + ... + 111192.

It is an arithmetic number, because the mean of its divisors is an integer number (524836449).

Almost surely, 2^5439817478 is an apocalyptic number.

5439817478 is a deficient number, since it is larger than the sum of its proper divisors (2957565706).

5439817478 is a wasteful number, since it uses less digits than its factorization.

5439817478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150247.

The product of its digits is 6773760, while the sum is 56.

The square root of 5439817478 is about 73755.1183173073. The cubic root of 5439817478 is about 1758.7121990809.

The spelling of 5439817478 in words is "five billion, four hundred thirty-nine million, eight hundred seventeen thousand, four hundred seventy-eight".