5156521853459 has 2 divisors, whose sum is σ = 5156521853460. Its totient is φ = 5156521853458.

The previous prime is 5156521853411. The next prime is 5156521853501. The reversal of 5156521853459 is 9543581256515.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5156521853459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5156521853398 and 5156521853407.

It is not a weakly prime, because it can be changed into another prime (5156521853359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2578260926729 + 2578260926730.

It is an arithmetic number, because the mean of its divisors is an integer number (2578260926730).

Almost surely, 2^{5156521853459} is an apocalyptic number.

5156521853459 is a deficient number, since it is larger than the sum of its proper divisors (1).

5156521853459 is an equidigital number, since it uses as much as digits as its factorization.

5156521853459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400000, while the sum is 59.

The spelling of 5156521853459 in words is "five trillion, one hundred fifty-six billion, five hundred twenty-one million, eight hundred fifty-three thousand, four hundred fifty-nine".