425346734799 has 24 divisors (see below), whose sum is σ = 702448067360. Its totient is φ = 242955453888.

The previous prime is 425346734779. The next prime is 425346734947. The reversal of 425346734799 is 997437643524.

It is a happy number.

425346734799 is a `hidden beast` number, since 4 + 2 + 53 + 46 + 73 + 479 + 9 = 666.

It is not a de Polignac number, because 425346734799 - 2⁷ = 425346734671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425346734749) 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 in 23 ways as a sum of consecutive naturals, for example, 1231684 + ... + 1538745.

Almost surely, 2^425346734799 is an apocalyptic number.

425346734799 is a deficient number, since it is larger than the sum of its proper divisors (277101332561).

425346734799 is a wasteful number, since it uses less digits than its factorization.

425346734799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772879 (or 2772876 counting only the distinct ones).

The product of its digits is 137168640, while the sum is 63.

The spelling of 425346734799 in words is "four hundred twenty-five billion, three hundred forty-six million, seven hundred thirty-four thousand, seven hundred ninety-nine".