426575472161 has 4 divisors (see below), whose sum is σ = 451668147012. Its totient is φ = 401482797312.

The previous prime is 426575472149. The next prime is 426575472163. The reversal of 426575472161 is 161274575624.

It is a happy number.

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 225203397136 + 201372075025 = 474556^2 + 448745^2 .

It is not a de Polignac number, because 426575472161 - 2³⁰ = 425501730337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426575472163) 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, 12546337400 + ... + 12546337433.

It is an arithmetic number, because the mean of its divisors is an integer number (112917036753).

Almost surely, 2^426575472161 is an apocalyptic number.

It is an amenable number.

426575472161 is a deficient number, since it is larger than the sum of its proper divisors (25092674851).

426575472161 is a wasteful number, since it uses less digits than its factorization.

426575472161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25092674850.

The product of its digits is 2822400, while the sum is 50.

The spelling of 426575472161 in words is "four hundred twenty-six billion, five hundred seventy-five million, four hundred seventy-two thousand, one hundred sixty-one".