425891510543 has 2 divisors, whose sum is σ = 425891510544. Its totient is φ = 425891510542.

The previous prime is 425891510507. The next prime is 425891510567. The reversal of 425891510543 is 345015198524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425891510543 - 2²⁰ = 425890461967 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425891516543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212945755271 + 212945755272.

It is an arithmetic number, because the mean of its divisors is an integer number (212945755272).

Almost surely, 2^425891510543 is an apocalyptic number.

425891510543 is a deficient number, since it is larger than the sum of its proper divisors (1).

425891510543 is an equidigital number, since it uses as much as digits as its factorization.

425891510543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 425891510543 in words is "four hundred twenty-five billion, eight hundred ninety-one million, five hundred ten thousand, five hundred forty-three".