426847856469 has 4 divisors (see below), whose sum is σ = 569130475296. Its totient is φ = 284565237644.

The previous prime is 426847856447. The next prime is 426847856471. The reversal of 426847856469 is 964658748624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 426847856469 - 2⁵ = 426847856437 is a prime.

It is a super-3 number, since 3×426847856469³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426847856069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71141309409 + ... + 71141309414.

It is an arithmetic number, because the mean of its divisors is an integer number (142282618824).

Almost surely, 2^426847856469 is an apocalyptic number.

It is an amenable number.

426847856469 is a deficient number, since it is larger than the sum of its proper divisors (142282618827).

426847856469 is a wasteful number, since it uses less digits than its factorization.

426847856469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142282618826.

The product of its digits is 557383680, while the sum is 69.

The spelling of 426847856469 in words is "four hundred twenty-six billion, eight hundred forty-seven million, eight hundred fifty-six thousand, four hundred sixty-nine".