425284562477 has 4 divisors (see below), whose sum is σ = 439949547420. Its totient is φ = 410619577536.

The previous prime is 425284562467. The next prime is 425284562497. The reversal of 425284562477 is 774265482524.

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 351229281316 + 74055281161 = 592646^2 + 272131^2 .

It is a cyclic number.

It is not a de Polignac number, because 425284562477 - 2⁶ = 425284562413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425284562407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7332492428 + ... + 7332492485.

It is an arithmetic number, because the mean of its divisors is an integer number (109987386855).

Almost surely, 2^425284562477 is an apocalyptic number.

It is an amenable number.

425284562477 is a deficient number, since it is larger than the sum of its proper divisors (14664984943).

425284562477 is a wasteful number, since it uses less digits than its factorization.

425284562477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14664984942.

The product of its digits is 30105600, while the sum is 56.

The spelling of 425284562477 in words is "four hundred twenty-five billion, two hundred eighty-four million, five hundred sixty-two thousand, four hundred seventy-seven".