426778305271 has 12 divisors (see below), whose sum is σ = 431718041808. Its totient is φ = 421894090752.

The previous prime is 426778305269. The next prime is 426778305313. The reversal of 426778305271 is 172503877624.

It is not a de Polignac number, because 426778305271 - 2¹ = 426778305269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426778305211) 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 11 ways as a sum of consecutive naturals, for example, 8320215 + ... + 8371351.

It is an arithmetic number, because the mean of its divisors is an integer number (35976503484).

Almost surely, 2^426778305271 is an apocalyptic number.

426778305271 is a deficient number, since it is larger than the sum of its proper divisors (4939736537).

426778305271 is an frugal number, since it uses more digits than its factorization.

426778305271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52218 (or 52121 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 52.

The spelling of 426778305271 in words is "four hundred twenty-six billion, seven hundred seventy-eight million, three hundred five thousand, two hundred seventy-one".