426305786893 has 4 divisors (see below), whose sum is σ = 487206613600. Its totient is φ = 365404960188.

The previous prime is 426305786869. The next prime is 426305786941. The reversal of 426305786893 is 398687503624.

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 a de Polignac number, because none of the positive numbers 2^k-426305786893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426305786693) 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, 30450413343 + ... + 30450413356.

It is an arithmetic number, because the mean of its divisors is an integer number (121801653400).

Almost surely, 2^426305786893 is an apocalyptic number.

It is an amenable number.

426305786893 is a deficient number, since it is larger than the sum of its proper divisors (60900826707).

426305786893 is an equidigital number, since it uses as much as digits as its factorization.

426305786893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60900826706.

The product of its (nonzero) digits is 52254720, while the sum is 61.

The spelling of 426305786893 in words is "four hundred twenty-six billion, three hundred five million, seven hundred eighty-six thousand, eight hundred ninety-three".