426304444545 has 36 divisors (see below), whose sum is σ = 859568966100. Its totient is φ = 194882030784.

The previous prime is 426304444543. The next prime is 426304444591. The reversal of 426304444545 is 545444403624.

426304444545 is a `hidden beast` number, since 4 + 2 + 63 + 0 + 4 + 4 + 44 + 545 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 252663054336 + 173641390209 = 502656^2 + 416703^2 .

It is not a de Polignac number, because 426304444545 - 2¹ = 426304444543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 426304444545.

It is not an unprimeable number, because it can be changed into a prime (426304444543) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 96665470 + ... + 96669879.

It is an arithmetic number, because the mean of its divisors is an integer number (23876915725).

Almost surely, 2^426304444545 is an apocalyptic number.

426304444545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

426304444545 is an abundant number, since it is smaller than the sum of its proper divisors (433264521555).

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

426304444545 is a wasteful number, since it uses less digits than its factorization.

426304444545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193335374 (or 193335364 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 45.

The spelling of 426304444545 in words is "four hundred twenty-six billion, three hundred four million, four hundred forty-four thousand, five hundred forty-five".