425335387493 has 2 divisors, whose sum is σ = 425335387494. Its totient is φ = 425335387492.

The previous prime is 425335387469. The next prime is 425335387511. The reversal of 425335387493 is 394783533524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396475493569 + 28859893924 = 629663^2 + 169882^2 .

It is a cyclic number.

It is not a de Polignac number, because 425335387493 - 2³⁰ = 424261645669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425335387403) 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, 212667693746 + 212667693747.

It is an arithmetic number, because the mean of its divisors is an integer number (212667693747).

Almost surely, 2^425335387493 is an apocalyptic number.

It is an amenable number.

425335387493 is a deficient number, since it is larger than the sum of its proper divisors (1).

425335387493 is an equidigital number, since it uses as much as digits as its factorization.

425335387493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32659200, while the sum is 56.

The spelling of 425335387493 in words is "four hundred twenty-five billion, three hundred thirty-five million, three hundred eighty-seven thousand, four hundred ninety-three".