8539479953 has 2 divisors, whose sum is σ = 8539479954. Its totient is φ = 8539479952.

The previous prime is 8539479943. The next prime is 8539480013. The reversal of 8539479953 is 3599749358.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4672132609 + 3867347344 = 68353^2 + 62188^2 .

It is a cyclic number.

It is not a de Polignac number, because 8539479953 - 2⁴ = 8539479937 is a prime.

It is not a weakly prime, because it can be changed into another prime (8539479943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4269739976 + 4269739977.

It is an arithmetic number, because the mean of its divisors is an integer number (4269739977).

Almost surely, 2^8539479953 is an apocalyptic number.

It is an amenable number.

8539479953 is a deficient number, since it is larger than the sum of its proper divisors (1).

8539479953 is an equidigital number, since it uses as much as digits as its factorization.

8539479953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36741600, while the sum is 62.

The square root of 8539479953 is about 92409.3066362907. The cubic root of 8539479953 is about 2043.9823491065.

The spelling of 8539479953 in words is "eight billion, five hundred thirty-nine million, four hundred seventy-nine thousand, nine hundred fifty-three".