426805545231 has 144 divisors (see below), whose sum is σ = 746058587040. Its totient is φ = 233553715200.

The previous prime is 426805545217. The next prime is 426805545233. The reversal of 426805545231 is 132545508624.

426805545231 is a `hidden beast` number, since 4 + 2 + 6 + 80 + 5 + 545 + 23 + 1 = 666.

It is not a de Polignac number, because 426805545231 - 2¹⁸ = 426805283087 is a prime.

It is a super-2 number, since 2×426805545231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426805545233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 224515381 + ... + 224517281.

It is an arithmetic number, because the mean of its divisors is an integer number (5180962410).

Almost surely, 2^426805545231 is an apocalyptic number.

426805545231 is a deficient number, since it is larger than the sum of its proper divisors (319253041809).

426805545231 is a wasteful number, since it uses less digits than its factorization.

426805545231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426 (or 2410 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 426805545231 in words is "four hundred twenty-six billion, eight hundred five million, five hundred forty-five thousand, two hundred thirty-one".