426434640544 has 24 divisors (see below), whose sum is σ = 915865308288. Its totient is φ = 193833927360.

The previous prime is 426434640539. The next prime is 426434640551. The reversal of 426434640544 is 445046434624.

It is a junction number, because it is equal to n+sod(n) for n = 426434640494 and 426434640503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605730672 + ... + 605731375.

It is an arithmetic number, because the mean of its divisors is an integer number (38161054512).

Almost surely, 2^426434640544 is an apocalyptic number.

426434640544 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

426434640544 is an abundant number, since it is smaller than the sum of its proper divisors (489430667744).

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

426434640544 is a wasteful number, since it uses less digits than its factorization.

426434640544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211462068 (or 1211462060 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 46.

The spelling of 426434640544 in words is "four hundred twenty-six billion, four hundred thirty-four million, six hundred forty thousand, five hundred forty-four".