5279831509 has 2 divisors, whose sum is σ = 5279831510. Its totient is φ = 5279831508.

The previous prime is 5279831477. The next prime is 5279831533. The reversal of 5279831509 is 9051389725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3627652900 + 1652178609 = 60230^2 + 40647^2 .

It is a cyclic number.

It is not a de Polignac number, because 5279831509 - 2⁵ = 5279831477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5279631509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639915754 + 2639915755.

It is an arithmetic number, because the mean of its divisors is an integer number (2639915755).

Almost surely, 2^5279831509 is an apocalyptic number.

It is an amenable number.

5279831509 is a deficient number, since it is larger than the sum of its proper divisors (1).

5279831509 is an equidigital number, since it uses as much as digits as its factorization.

5279831509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 5279831509 is about 72662.4490985543. The cubic root of 5279831509 is about 1741.2990155419.

The spelling of 5279831509 in words is "five billion, two hundred seventy-nine million, eight hundred thirty-one thousand, five hundred nine".