425632748993 has 4 divisors (see below), whose sum is σ = 450669969540. Its totient is φ = 400595528448.

The previous prime is 425632748963. The next prime is 425632749011. The reversal of 425632748993 is 399847236524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 292749169969 + 132883579024 = 541063^2 + 364532^2 .

It is a cyclic number.

It is not a de Polignac number, because 425632748993 - 2¹² = 425632744897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425632748963) 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 3 ways as a sum of consecutive naturals, for example, 12518610248 + ... + 12518610281.

It is an arithmetic number, because the mean of its divisors is an integer number (112667492385).

Almost surely, 2^425632748993 is an apocalyptic number.

It is an amenable number.

425632748993 is a deficient number, since it is larger than the sum of its proper divisors (25037220547).

425632748993 is a wasteful number, since it uses less digits than its factorization.

425632748993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25037220546.

The product of its digits is 78382080, while the sum is 62.

The spelling of 425632748993 in words is "four hundred twenty-five billion, six hundred thirty-two million, seven hundred forty-eight thousand, nine hundred ninety-three".