425335387469 has 2 divisors, whose sum is σ = 425335387470. Its totient is φ = 425335387468.

The previous prime is 425335387447. The next prime is 425335387493. The reversal of 425335387469 is 964783533524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411637728100 + 13697659369 = 641590^2 + 117037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425335387469 is a prime.

It is a super-2 number, since 2×425335387469² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425335387769) 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, 212667693734 + 212667693735.

It is an arithmetic number, because the mean of its divisors is an integer number (212667693735).

Almost surely, 2^425335387469 is an apocalyptic number.

It is an amenable number.

425335387469 is a deficient number, since it is larger than the sum of its proper divisors (1).

425335387469 is an equidigital number, since it uses as much as digits as its factorization.

425335387469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65318400, while the sum is 59.

The spelling of 425335387469 in words is "four hundred twenty-five billion, three hundred thirty-five million, three hundred eighty-seven thousand, four hundred sixty-nine".