5206779994 has 32 divisors (see below), whose sum is σ = 8713066320. Its totient is φ = 2318131200.

The previous prime is 5206779983. The next prime is 5206780003. The reversal of 5206779994 is 4999776025.

It can be written as a sum of positive squares in 8 ways, for example, as 90954369 + 5115825625 = 9537^2 + 71525^2 .

It is a super-2 number, since 2×5206779994² = 54221115811837280072, which contains 22 as substring.

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, 67434 + ... + 122314.

Almost surely, 2^5206779994 is an apocalyptic number.

5206779994 is a deficient number, since it is larger than the sum of its proper divisors (3506286326).

5206779994 is a wasteful number, since it uses less digits than its factorization.

5206779994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55026.

The product of its (nonzero) digits is 8573040, while the sum is 58.

The square root of 5206779994 is about 72158.0209955899. The cubic root of 5206779994 is about 1733.2308446880.

The spelling of 5206779994 in words is "five billion, two hundred six million, seven hundred seventy-nine thousand, nine hundred ninety-four".