426242646020 has 24 divisors (see below), whose sum is σ = 895553424024. Its totient is φ = 170412512256.

The previous prime is 426242646013. The next prime is 426242646079. The reversal of 426242646020 is 20646242624.

It can be written as a sum of positive squares in 4 ways, for example, as 12361437124 + 413881208896 = 111182^2 + 643336^2 .

It is a super-2 number, since 2×426242646020² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5242787 + ... + 5323466.

It is an arithmetic number, because the mean of its divisors is an integer number (37314726001).

Almost surely, 2^426242646020 is an apocalyptic number.

It is an amenable number.

426242646020 is an abundant number, since it is smaller than the sum of its proper divisors (469310778004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426242646020 is a wasteful number, since it uses less digits than its factorization.

426242646020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10568279 (or 10568277 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 426242646020 its reverse (20646242624), we get a palindrome (446888888644).

The spelling of 426242646020 in words is "four hundred twenty-six billion, two hundred forty-two million, six hundred forty-six thousand, twenty".