76513539313 has 2 divisors, whose sum is σ = 76513539314. Its totient is φ = 76513539312.

The previous prime is 76513539307. The next prime is 76513539317. The reversal of 76513539313 is 31393531567.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76201946209 + 311593104 = 276047^2 + 17652^2 .

It is an emirp because it is prime and its reverse (31393531567) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76513539313 is a prime.

It is not a weakly prime, because it can be changed into another prime (76513539317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38256769656 + 38256769657.

It is an arithmetic number, because the mean of its divisors is an integer number (38256769657).

Almost surely, 2^76513539313 is an apocalyptic number.

It is an amenable number.

76513539313 is a deficient number, since it is larger than the sum of its proper divisors (1).

76513539313 is an equidigital number, since it uses as much as digits as its factorization.

76513539313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 765450, while the sum is 46.

The spelling of 76513539313 in words is "seventy-six billion, five hundred thirteen million, five hundred thirty-nine thousand, three hundred thirteen".