5121587145847 has 2 divisors, whose sum is σ = 5121587145848. Its totient is φ = 5121587145846.

The previous prime is 5121587145811. The next prime is 5121587145907. The reversal of 5121587145847 is 7485417851215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5121587145847 - 2¹⁵ = 5121587113079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5121587145791 and 5121587145800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5121587145247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560793572923 + 2560793572924.

It is an arithmetic number, because the mean of its divisors is an integer number (2560793572924).

Almost surely, 2^{5121587145847} is an apocalyptic number.

5121587145847 is a deficient number, since it is larger than the sum of its proper divisors (1).

5121587145847 is an equidigital number, since it uses as much as digits as its factorization.

5121587145847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12544000, while the sum is 58.

The spelling of 5121587145847 in words is "five trillion, one hundred twenty-one billion, five hundred eighty-seven million, one hundred forty-five thousand, eight hundred forty-seven".