5179213805 has 4 divisors (see below), whose sum is σ = 6215056572. Its totient is φ = 4143371040.

The previous prime is 5179213789. The next prime is 5179213843. The reversal of 5179213805 is 5083129715.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2887772644 + 2291441161 = 53738^2 + 47869^2 .

It is not a de Polignac number, because 5179213805 - 2⁴ = 5179213789 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 517921376 + ... + 517921385.

It is an arithmetic number, because the mean of its divisors is an integer number (1553764143).

Almost surely, 2^5179213805 is an apocalyptic number.

It is an amenable number.

5179213805 is a deficient number, since it is larger than the sum of its proper divisors (1035842767).

5179213805 is a wasteful number, since it uses less digits than its factorization.

5179213805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035842766.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 5179213805 is about 71966.7548594488. The cubic root of 5179213805 is about 1730.1666901431.

The spelling of 5179213805 in words is "five billion, one hundred seventy-nine million, two hundred thirteen thousand, eight hundred five".